An interesting record.
Flocks of Large-billed Crows are regular in both spring and autumn on Po Toi. The largest flock over the last 4 years was 28 in April 2006 but usually they are less than ten.
I'm not sure whether these are true migration or just wandering groups, but Large-billed Crow migration has been recorded elsewhere is SE Asia so these are quite possibly migrants.
The Black Kites are probably an accumulation of migrating birds also, brought down from further north by the cold front.
[ Last edited by wgeoff at 14/11/2009 18:49 ]
