Zosterops, have you encountered the hypothesis that this is because paler colours better reflect heat & therefore assist in the survival of inland birds?
similarly i've heard another theory is camouflage; lighter birds blend in with the paler landscape, eg. inland pipts and bushlarks are paler to match desert sands
1. Nankeen kestrel
2. whistling kite
3. black kite
4. nankeen kestrel
5. nankeen kestrel
6. whistling kite.
I agree with Zosterops.
The last Nankeen Kestrel looks very light coloured.
This is another angle, not much difference but you can see some of the top of the wing.
It's definetely a Nankeen Kestrel but its just lighter coloured than usual.
Thanks. I really appreciate the ID's. This was way out in the bush and quite remote. Very skittly bird which wouldn't let me get close.
Inland birds, particularly birds of prey, are often paler than their coastal counterparts.
Zosterops, have you encountered the hypothesis that this is because paler colours better reflect heat & therefore assist in the survival of inland birds?
yes
similarly i've heard another theory is camouflage; lighter birds blend in with the paler landscape, eg. inland pipts and bushlarks are paler to match desert sands