Feeding Observations at a Fruiting Pipturus

On 30 August 1987 a fruiting Pipturus argentaeus Willd. (Urticaceae), which was attracting several species of birds was watched for approximately one hour from 09:00. The tree was c.10m tall and stood in a small clearing beside a dry stream bed in the Veimauri logging area,c .70km north-west of Port Moresby at c. 200m above sea level.

The birds were feeding on small, green, spherical cone-like structures, 2 – 3mm in diameter, which are the immature compound fruits. These compound fruits are borne at intervals, on thin, angled (zig-zag) stems, produced in the leaf axils. The fruits were hard and dry. The mature fruit of P.argenteus is a white, fleshy false berry but none were seen on this tree.

Eight species were observed feeding in the tree. Two pairs of Orange-breasted Fig-Parrots Cyclopsitta gulielmiteri were present for the whole time. They fed actively, climbing from branch to branch throughout the tree. Females of three birds of paradise, Magnificent Bird of Paradise Cicinnurus magnificus, King Bird of Paradise C.regius and Raggiana Bird of Paradise Paradisaea raggiana, visited the tree for short periods, each feeding in only one part of the tree before moving on. A male Brown Cuckoo-Dove Macropygia amboinensis landed on a low branch of the tree. It took a single fruit before attempting to climb to a smaller branch which could not bear its weight. It fell out of the tree and flew into the surrounding forest. A pair of Plain Honeyeaters Pycnopygius ixoides and a pair of Tawny-breasted Honeyeaters Xanthotis flaviventer made repeated visits, feeding throughout the crown. All these birds appeared to ingest the fruit whole. Two Grey Whistlers Pachycephala simplex also visited the tree but did not feed on the fruit, instead they gleaned items from the leaves. No inter-specific aggression was noted, although at times the were eight individuals of four species in the tree.

Voucher specimen at UPNG for P.argenteus is Hicks & Hicks #2. I would like to thank Paul Katik for identifying the food plant.

First published in Muruk 3(1): 15

Owling at the Pacific Adventist College

Owls, nightjars and frogmouths are not easy birds to see. Most observations tend to be of birds glimpsed in car headlights while travelling at night, when identification is not always possible. Members of the PNGBS are fortunate that Len Tolhurst, a PNGBS committee member, works and lives on the SDA Pacific Adventist College campus, which lies south of the Hubert Murray Highway, near Illimo Farm, about 10km from the outskirts of Port Moresby. The campus is surrounded by a security fence which is well lit at night. The lights attract flying insects which in turn attract the night birds and for a change it is possible to see them well. The demand for some night-time bird-watching was such that two trips were organised to the college, on 11 and 13 August 1987.

 

The plan was to drive around the perimeter track to see what had been attracted to the lights. The first birds seen each evening were a pair of Blue-winged Kookaburras using the security fence as a vantage point from which to hunt. Barn Owls, Papuan Frogmouths and Large-tailed Nightjars were perched in open situations where they were easy to see. Having followed the security fence for some way, we moved into the farmland beyond the campus and were surprised how many Barn owls and Large-tailed Nightjars there were. At least five pairs of the latter were scattered over an area of ploughed land, their eyes reflecting red or green in the spot-light beam. These nightjars allowed a close approach when dazzled by the light and subsequently we have managed to trap three for ringing (banding) by this means. While trapped in the light the full details of their cryptic plumage was seen, although under such conditions it afforded them little protection. In the same area there were at least five Barn Owls but no sign of the rarer owls we had hoped for. Papuan Boobook, Barking Owl and Rufous Owl have all been reported from the college.

Our first visit finished on a note of excitement when a large nightjar was trapped in the spotlight beam. It was observed for about 15 minutes spending most of its time perched but occasionally sallying out after insects. It showed no white in the wing or tail and was identified as a White-throated Nightjar. This is thought to be the first sighting of this species, a migrant to New Guinea from its Australian breeding grounds, in the Port Moresby area. A note on this sighting will be in the next issue of Muruk.

On behalf of all those who enjoyed the night time viewing, I would like to thank Len for his hospitality, chauffeuring us around and more importantly knowing where to go, his wife Val for the welcoming drinks and cakes and Mr Wilkinson, the principal of the college for allowing us to roam over his campus and for the loan of his spotlight which greatly helped our viewing.

Species List:

Great Egret, Rufous Night-Heron, Masked Lapwing, Barn Owl, Papuan Frogmouth, White-throated Nightjar, Large-tailed Nightjar, Blue-winged Kookaburra.

First published in Muruk 3(1): 25

White-throated Nightjar Eurostopodus mystacalis: First record for the Port Moresby Area

On 11 August 1987 several members of the PNGBS were looking for night –birds on the Pacific Adventist campus, c.10km east of Port Moresby at c.70m. At 21:30 a large nightjar was seen perched on a bare branch. It was observed for about 15 minutes with the aid of a powerful spotlight from a distance of about 30m. During this time it made three flights, returning to the same perch each time. It was larger than either of a pair of Large-tailed Nightjars Caprimulgus macrurus which were seen at the same time. It showed no white markings either in the wing nor on the underside of the tail. The undertail coverts and undersides of the tail were quite strongly barred. A bird matching this description was seen in the same place on 3 September 1987. After consulting various reference books (Beehler et al. 1986; Coates 1985; Slater et al. 1986) this bird was identified as a White-throated Nightjar Eurostopodus mystacalis. It was seen by nine observers, none of whom had had any previous experience of the species.

Six species of nightjar have been recorded in New Guinea and its satellite islands (Beehler et al. 1986). Of these, five were rejected for the following reasons: 1) The Large-tailed Nightjar is the common nightjar of the savanna around Port Moresby. In flight it shows distinct white markings in the wing and on the underside of the tail; 2) Two species, Jungle Nightjar C.indicus and Spotted Nightjar E.argus have yet to be recorded in PNG, although both are migrants and could occur. Both show distinct white wing patches and the male Spotted Nightjar has white in the tail. 3) Two all dark nightjars, both endemic to New Guinea, can be rejected by size and habitat. The Mountain Nightjar E.archboldi frequents montane rain forest and has not been recorded below 2000m (Coates 1985). The Papuan Nightjar E.papuensis is found almost exclusively in lowland rainforest. Both are similar in size to Large-tailed Nightjar.

A race of the White-throated Nightjar E.m.mystacalisis a migrant to New Guinea from its breeding grounds in eastern Australia. It has been recorded infrequently in PNG with sightings from Western Province through the highlands to the north coast but this is the first sighting for south-east New Guinea. There has been one previous ‘possible’ record for the Port Moresby area when a Nightjar showing small white wing patches and lacking white in the tail was flushed from the road near Brown River in August 1986 (Field Guides Inc, 1988). I suspect this species has been overlooked in the past and is not just a vagrant to the Port Moresby area.

Beehler, B.M., T.K. Pratt & D.A. Zimmerman. 1986. Birds of New Guinea. Princeton University Press.
Coates, B.J. 1985. The Birds of Papua New Guinea. Vol 1. Dove Publications.
Field Guides Inc. 1988. Field Guides Inc tour of Papua New Guinea 1986. Muruk 3:23-24.
Slater, P., P.Slater & R.Slater. 1986. The Slater Field Guide to Australian Birds. Rigby.

First published in Muruk 3(2): 55-56

Myola in June

Five members of the PNGBS and 10 others celebrated the Queen’s official birthday by leaving the heat of Port Moresby for the cooler delights of Myola. Myola lies in the heart of the Owen Stanley mountain range at a height of 2080m and is less than 25 minutes flying time from the capital. However, the contrast could not be greater. Myola is a small satellite village of about 20 huts, two of which are the guest house sleeping quarters and common room, situated on the edge of moss forest and the swampy grassland of the Myola basin. The origin of this grassland is uncertain although a blackened slope where the vegetation had been burnt suggested one possible cause.

This was the first time we had trapped birds using mist nets at Myolas. Rings (bands) were supplied by the Australian Bird and Bat Banding Scheme. The nets were sited close to the track leading to the Kokoda Trail. Over the weekend we caught, ringed, weighed and measured 16 birds of 10 species: four Ashy Robins, all caught in the same net, three Fan-tailed Berrypeckers, two Regent Whistlers, a pair of Black-billed Cuckoo-Doves and one each of Bronze Ground-Dove, Mountain Mouse Warbler, Friendly Fantail, Black Fantail and Rufous-backed Honeyeater. Pride of place though went to a female Macgregor’s Bowerbird caught on the Sunday. She was a large, powerful bird with uniform olive-brown plumage and a pale yellow-orange underwing. It was nice to confirm the presence of this species at Myola. We have subsequently heard of a bower close to where we caught this bird.

We spent the weekend in the vicinity of the village as we did not want t oleave the nets unattended for too long. Even so about 40 species were recorded. An unidentified fruiting tree proved attractive to several species including a pair of Loria’s Birds of Paradise, several Fan-tailed Berrypeckers and the noisy Belford’s Melidectes. Individual Stephanie’s Astrapias , usually females or subadult males were seen occasionally at the forest edge, close to the village. In the grassland of the Myola basin Tawny Grassbirds were common, Spotless Crakes were heard calling but not seen and King Quail, in small groups, were recorded for the first time.

Our long weekend break, 6 – 8 June 1987, ended with a flight back to Moresby early on Tuesday morning, We all enjoyed our stay and would like to thank the villagers of Myola for their hospitality and Talair for getting us there and back.

Species List: r = ringed; h = heard

Harrier sp, New Guinea Harpy Eagle (h), Brown Falcon, Wattled Brush-Turkey, King Quail, Forbes’ Forest-Rail, Spotless Crake (h), Black-billed Cuckoo-Dove (r), Bronze Ground-Dove (r), White-breasted Fruit-Dove, Papuan Mountain Pigeon, Goldie’s Lorikeet, Fan-tailed Cuckoo, Sooty Owl (h), Mountain Swiftlet, Glossy Swiftlet, Forest Kingfisher, Pacific Swallow, Island Thrush, Spotted Jewel-Babbler (h), Lesser Melampitta, Blue-capped Ifrita, Tawny Grassbird, Mountain Mouse-Warbler (r), Large Scrub-Wren, Buff-faced Scrub-Wren, Gerygone sp, Dimorphic Fantail, Black Fantail (r), Friendly Fantail (r), Black-breasted Boatbill, Black Monarch, Canary Flycatcher, Ashy Robin (r), Blue-Grey Robin, Regent Whistler, Rufous-naped Whistler, Fan-tailed Berrypecker (r), Red-collared Myzomela, Rufous-backed Honeyeater (r), Belford’s Melidectes, Common Smoky Honeyeater, Grey-headed Mannikin, Macgregor’s Bowerbird, Loria’s Bird of Paradise, Stepahanie’s Astrapia.

PNGBS Outing: 7th December 1986: Hiritano Highway

Only two cars and three birders, Charles Menendez, Niklas Wahlberg and myself, met under the NBC tree for the December outing. Not surprising really as most people had already departed on their Christmas holidays. Our aim was to do a run along the Hiritano Highway, stopping at various birding spots en route. After heavy overnight rain, the morning was overcast and cool. By 05:50 we were birding in the roadside rain forest at the ‘King Bird Tree’. One of the first birds we saw was a damp looking Grey-headed Goshawk; also noted was my first Purple-tailed Imperial Pigeon and two Manucode species, Glossy-mantled and Trumpet. The Trumpet Manucode perched in the open making a ‘chunk’ call. We left the King Bird Tree at 07:15 having recorded 33 species. A brief stop at the oxbow added another 12 species including Little and Azure Kingfishers. A flowering tree beside the highway was attracting a variety of Lorikeets and prompted another brief stop: Rainbow Lorikeet was the commonest species but also feeding in the tree were Black-capped Lories, Greater Streaked Lories, Red-flanked Lorikeets and Eclectus Parrots.

We eventually reached Kanosia Lagoon at 09:15, where the overcast conditions had developed into fine drizzle. First birds were a flock of 14 Cattle Egrets in breeding plumage. The lagoon hosted a good selection of birds including two Oriental Pratincole, 15 Garganey and two Little Ringed Plover, one in breeding plumage. While Nik and I went on to the coast a Hisiu with 75 species recorded, Charlie headed back to Port Moresby.

We reached the sea at Obu Point at 11:15. On a drive along the beach to Cape Suckling we recorded 11 species of wader, including 3 Terek Sandpipers, 14 Whimbrel and c.200 Red-necked Stint. A gathering of terns at Obu Point included c.300 Common Terns and c.50 Little Terns. With 89 species we turned for home.

At Hisiu Mangroves, I managed to lock the keys in the car, but fortunately managed to break-in and retrieve the keys without too much trouble. Nik, meanwhile, had been watching a pair of Mangrove Robins which thankfully hung around for me to see them. We had a good time in the mangroves catching up with most of the mangrove specialities including my first Mangrove Fantails plus Mangrove Gerygone, Broad-billed Flycatcher, Collared Kingfisher and a single Oriental Cuckoo. Hisiu Lagoon was completely dry, so we did not linger. Our last stop was Aroa Lagoon where we added a few more species to the list, including a single Australian White Ibis plus some more wetland and savanna species.

Tired and contented we rolled back into Port Moresby as the sun was setting having recorded 111 species.

Species List:
Australasian Grebe, Little Black Cormorant, Little Pied Cormorant, Australasian Darter, Great Egret, Pied Heron, Intermediate Egret, Cattle Egret, Eastern Reef Egret, Nankeen Night-Heron, Australian White Ibis, Whistling Kite, Brahminy Kite, Papuan Harrier, Brown Goshawk, Grey-headed Goshawk, Pacific Black Duck, Wandering Whistling Duck, Green Pygmy Goose, Garganey, White-browed Crake, Dusky Moorhen, Purple Swamphen, Comb-crested Jacana, Oriental Pratincole, Masked Lapwing, Grey Plover, Pacific Golden Plover, Little Ringed Plover, Mongolian Plover, Greater Sand Plover, Ruddy Turnstone, Whimbrel, Grey-tailed Tattler, Wood Sandpiper, Common Sandpiper, Terek Sandpiper, Bar-tailed Godwit, Sharp-tailed Sandpiper, Red-necked Stint, Gull-billed Tern, Common Tern, Little Tern, Emerald Ground-Dove, Stephan’s Ground-Dove, Peaceful Dove, Dwarf Fruit-Dove, Orange-bellied Fruit-Dove, Purple-tailed Imperial-Pigeon, Torresian Imperial Pigeon, Papuan mountain Pigeon, Greater Streaked Lory, Black-capped Lory, Coconut Lorikeet, Red-flanked Lorikeet, Orange-breasted Fig-Parrot, Red-cheeked Parrot, Eclectus Parrot, Oriental Cuckoo, Pheasant Coucal, Uniform Swiftlet, Glossy Swiftlet, Rufous-bellied Kookaburra, Blue-winged Kookaburra, Collared Kingfisher, Azure Kingfisher, Little Kingfisher, Yellow-billed Kingfisher, Rainbow Bee-eater, Oriental Dollarbird, Pacific Swallow, White-bellied Cuckoo-Shrike, Black Cuckoo-Shrike, Boyer’s Cuckoo-Shrike, Cicadbird, White-winged Triller, White-shouldered Fairy-Wren, Mangrove Gerygone, Northern Fantail, Rufous Fantail, Mangrove Fantail, Willie Wagtail, Friled Monarch, Leaden Flycatcher, Broad-billed Flycatcher, Shining Flycatcher, Mangrove Robin, Mangrove Golden Whistler (Nik only), Grey Whistler, White-bellied Whistler, Rusty Pitohui, Olive-backed Sunbird, Dusky Myzomela, Graceful Meliphaga, Tawny-breasted Honeyeater, Helmeted Friarbird, Rufous-banded Honeyeater, Brown-backed Honeyeater, Grey-headed Mannikin, Metallic Starling, Brown Oriole, Spangled Drongo, White-breasted Wood-Swallow, Black-backed Butcherbird, Yellow-faced Myna, Golden Myna, Glossy-mantled Manucode, Trumpet Manucode, Raggiana Bird of Paradise,Torresian Crow.

The Fairy Martin Hirundo ariel in Papua New Guinea. Three New Sight Records and a Brief Review

Three new sight records of Fairy Martin Hirundo ariel believed to be only the fourth, fifth and sixth for PNG are presented below, followed by a brief review of the Fairy Martin in Papua New Guinea.

On 26 September 1986 at Tabubil airstrip, Western Province, A and L.M. Murray observed a Fairy Martin with a low-flying group of Uniform Swiftlets Collocalia vanikorensis. Clear views were obtained or some 15 minutes of its snow white rump, dark wings and back, rust red head and nape and pale underparts. Its tail was dark and square. Its flight was more direct than the swiftlets and it glided frequently. This species has not previously been recorded from Tabubil. It is possible the exceptionally dry month prior to this sighting and/or the noticeable southwards migration, e.g. of Rainbow Bee-eaters Merops ornatus and Black-faced Cuckoo-Shrikes Coracina novaehollandiae were relevant factors.

Fairy Martin, Tari Airfield 29 Oct 1986

On 28 October 1986 at 15:00 while driving through Tari, Southern Highlands Province, R.Hicks noticed a small, white-rumped hirundine hawking low over an area of long grass in the company of several Pacific Swallows Hirundo tahitica. A brief glance showed that the rump was clean white and when the bird turned, its rufous cap could be seen, so erasing thoughts of a late Tree Martin Hirundo nigricans. The next day two individuals were observed from a distance of not more than 5m for about half-an-hour while they were perched on the Tari airfield perimeter fence. The birds could not be relocated on either 30 or 31 October.

Fairy Martins, Tari Airfield, 29 Oct 1986

The following field notes were made: The birds were noticeably smaller than the Pacific Swallows with which they were associated, but with a stockier, shorter-winged build, similar to that of Tree Martin, although none of this species were available for comparison. Plumage details: The rufous cap extended from forehead to nape and just below the eye. The mantle and back were black with some pale streaking where the rufous of the crown met with the black of the mantle, giving a zig-zag collar effect. Flight feathers and both upper and lower tail were dark grey. The rump was clean white. Chin, throat and ear coverts were very finely streaked pale brown on white. The ear coverts were also smudged with rufous. Just below this, on the upper breast were some faint brown smudges. The rest of the underparts were clean white.

On 8 November 1986 at 12:30, Mike and Helen Hopkins and R.Hicks observed a flock of c.70 Fairy Martins flying over the Bensbach River, c.10km south of Balamuk, Western Province.Shortly after the flock was seen perched on a derelict wire fence which allowed a more accurate estimate of c.100 birds to be made. Two Tree Martins were also present with the flock. These birds were much more jumpy than the Tari individuals and would not allow a close approach.

The Fairy Martin is a widespread species in Australia, although only a breeding season visitor to the south-east of that country (Pizzey 1980). It is a vagrant to PNG with only three records prior to the last quarter of 1986. The first of these records was of a single bird at Nomad River, Western Province on 10 May 1967 (Bell 1968). The second was of unspecified numbers at Weam, also Western Province in mid-1970 (Lindgren 1970) and only c.20km north of the Bensbach floodplain sighting this year. The third record was not until some 12 years later when a single individual was seen at Kanosia Lagoon, Central Province on 15 August 1982 (Finch 1982). All three records are of birds associating with Tree Martins which are common non-breeding season (March-October) visitors to PNG (Beehler et al 1986). It is probable that these three records refer to Fairy Martins that had become caught up in the Tree Martins northern migration. All records occurred in the southern winter.

The latest three records differ in that they all occurred in the southern spring, much later in the year than the previous records, at a time when the Fairy Martin should be well into their breeding season. The Tari and Tabubil records are considerably further north than Fairy Martins have previously been recorded, the individual at Tabubil being only 5^oS of the equator. The record from Tari is further unique in that there were no other Australian breeding species present. The Tari birds were associating with Pacific Swallows, a species that is not known to migrate and has not yet been admitted to the Australian list. This suggests there may have been a large influx of Fairy Martins into PNG in the southern autumn of 1986 and it will be interesting to see if any further records come to light following the publication of this note. 

Beehler, B.M., T.K.Pratt & D.A.Zimmerman (1986). Birds of New Guinea. Princeton University Press.

Bell, H. 1968. Fairy Martin – A new bird for New Guinea. Emu 68: 5.

Finch, B.W. 1982. Fairy Martin at Kanosia Lagoon – First Record for Central Province PNGBS Newsletter 193/4: 12

Lindgren, E. 1970. Observations. PNGBS Newsletter 59: 1.

Pizzey, G. 1980. A Field Guide to the Birds of Australia. Collins.

First published in Muruk 2(2): 64-65 co-authored with A. Murray and L.M. Murray

PNGBS Outing: 12 October 1986: Hiritano Highway

Leaving the NBC tree at about 05:45, we headed out along the Hiritano Highway again, on a misty morning. First stop was the King Bird Tree, just beyond the Brown River crossing, where the mist turned to fine drizzle. It did not make seeing the rain-forest birds any easier. We saw and identified Emperor Fairy-Wren and Frilled Monarch among the usual forest birds. Most intriguing sighting was a flock of 20 mannikins followed shortly after by another four. They made the typical manikin call and could, possibly, have been Streak-headed Mannikins. As we were getting ready to leave a male King Bird of Paradise flew across the road, a fleeting flash of red, giving just about everybody a brief glimpse.

We made a brief 20-minute stop at the oxbow, seeing a few species, of which Little Kingfisher was the pick.

Two weeks previously we had visited the Twelve-wired Bird of Paradise display tree at Lower Vanapa. While we were away bird-watching my car was broken into and various bit and pieces stolen, including my spare pair of binoculars. We reported it to the local village and they said come back in a couple of weeks and they would see what they could do. We made a brief unscheduled visit today and the villagers were as good as their word having retrieved most of the stolen items, including the binoculars and my tool kit.

On the road again, we continued along the Hiritano Highway reaching Kanosia Lagoon at about 10:30. En route we had recorded four species of raptor: Brahminy and Whistling Kites, Crested Hawks and Brown Goshawk. The lagoon held a flock of c.400 Green Pygmy Goose and a nice range of waders including Sharp-tailed Sandpiper, Pacific Golden Plover, Red-necked Stint and six Marsh Sandpipers. While some of us were scanning the lagoon for waders, others had found a recently fledged Maske lapwing chick, crouched in a hoof print. Among the birds on the lagoon were a flock of 34 Glossy Ibis while a single Cattle Egret, in breeding plumes was in nearby fields. While we had a picnic lunch an Australian Hobby passed through.

As time was getting on, plans to push on to Cape Suckling were abandoned and at about 13:00 we headed back to Moresby.

Species List:
Australasian Grebe, Little Black Cormorant, Little Pied Cormorant, Australasian Darter, Great Egret, Pied Heron, Rufous Night Heron, Whistling Kite, Crested Hawk, Australian Hobby, Spotted Whistling Duck, Wandering Whistling Duck, Green Pygmy Goose, Pacific Black Duck, Dusky Moorhen, Purple Swamphen, Bush-hen, Comb-crested Jacana, Masked Lapwing, Black-billed Cuckoo-Dove, Wompoo Fruit-Dove, Coroneted Fruit-Dove, Orange-bellied Fruit-Dove, Pinon Imperial Pigeon, Collared Imperial Pigeon, Zoe Imperial Pigeon, Papuan Mountain Pigeon, Greater Streaked Lory, Dusky Lorikeet, Rainbow Lorikeet, Sulphur-crested Cockatoo, Red-cheeked Parrot, Eclectus Parrot, Common Koel, Pheasant Coucal, Large-tailed Nightjar, Uniform Swiftlet, Papuan Spine-tailed Swift, Common Paradise-Kingfisher, Rufous-bellied Kookaburra, Blue-winged Kookaburra, Yellow-billed Kingfisher, Rainbow Bee-eater, Pacific Swallow, Tree Pipit, Black-faced Cuckoo-Shrike, White-bellied Cuckoo-Shrike, Varied Triller, Emperor Fairy-Wren, Yellow-bellied Gerygone, Green-backed Gerygone, Willie Wagtail, Black-faced Monarch, Frilled Monarch, Grey Shrike-Thrush, Rusty Pitohui, Black Sunbird, Silver-eared Honeyeater, Dusky Myzomela, Graceful Meliphaga, Tawny-breasted Honeyeater, Yellow-tinted Honeyeater, Brown Oriole, Yellow-faced Myna, Golden Myna, Singing Starling, Metallic Starling, White-breasted Wood-Swallow, Black-backed Butcherbird, Fawn-breasted Bowerbird, Twelve-wired Bird of Paradise, Torresian Crown.