Thanks to Alan Morris for his reply, it makes a lot of sense. However, other
replies suggest that it is a wild bird. The question becomes, is it possible to
separate wild birds from escapees? For recent escapees their behaviour gives it
away, similarly when a 'pearl' Cockatiel flys past you know what's going on plus
there is usually a Sparrowhawk not far away. So, other than being in a flock is
it possible to know the origin of this bird??
sure there are several other species which this question relates to. Anyway, I
think I'll have to go back to Castlereagh NR and look again, when the bird was
first seen it was in a flock of Peaceful Doves and was discounted as such. Maybe
there are more in the flock.
Graham Turner ask about records of Diamond Doves
in the Sydney Region. While in the past, notably in 1897 and 1942 Diamond
Doves during drought years were reported in small flocks in parts of Sydney,
in recent years only single birds have occasionally been sighted. As Diamond
Doves usually move north out of NSW in winter, and Diamond Doves are common
avairy birds, I would treat any records of single birds in the Sydney and
Central Coast Regions as avairy excapees.
Editor, NSW Annual Bird