An Extension of Altitude Range for two Mannikin Species

On 3 April 1986 at Myola, Northern Province (09^o 09’ S 147^o 45’ E) two Eastern Alpine Mannikins Lonchura monticola were observed on the edge of a flock of c.100 Grey-headed Mannikins L.caniceps feeding on the short grass of the airstrip. Two birds were subsequently seen on the moss forest/grassland border, again in the company of Grey-headed Mannikins. Myola, at 2080m lies well below the normal altitude range for Eastern Alpine Mannikins, given as 2700m – 3500m in Beeler et al. (1986) and 9000’-12000’ (2750m – 3400m) in Rand and Gilliard (1967). In the days preceding the observation there had been very heavy and continuous rainfall. This might have caused the birds to move lower. Grey-headed Mannikins had been recorded on each of the five days prior to these observations. In September 1987 Eastern Alpine Mannikins were found to be common on the tree fern forest located 2km from Myola and 500m higher (M.J.G. Hopkins pers. comm.).

Grey-headed Mannikins have been recorded at Myola on previous and subsequent visits: April 1985 P.Lambley; June 1986 J.Oliver; April 1987 H.C.F. Hopkins & P.Lambley (all pers.comm.) and in September 1985, June 1987 and September 1987 (pers. obs.). They have usually been observed feeding in the grasslands of the Myola basin or along the moss forest/grassland edge. Myola is higher than the upper altitude limit for this species given by Beeler et al. (1986) as 1900m and by Rand and Gilliard (1967) as 5800’ (c.1800m). The regular recording of this species suggests it is resident in the area.

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

Rand, A.L. & E.T. Gilliard (1967). Handbook of New Guinea Birds. Weidenfeld and Nicolson.

First published in Muruk 2(2): 60