Thanks all. Yes, so my seeing & thinking proceeded thus: All birds I saw in
flight had rounded tails, so that cuts out Torresian Crows. Then I thought
Little Ravens plus ARs. Following where possible on foot or just waiting, I saw
that the population contained juveniles, so if "ontogeny recapitulates
phylogeny" extends into infancy, these young might have calls more similar to
Torresian Crows & so the group might be an Australian Raven family. (Might the
TC call be closest to the primordial / prototypal vocalisation ?)
Thanks for the emails confirming exactly the progress of my thinking! When I
see birds that look "lighter" I think LRs + ARs ? -- but really I guess ARs
with juvs.
Judith
Reply to:
JLA
This note's from the mobile.
Begin forwarded message:
> From: Judith L-A <>
> Date: 27 January 2017 at 2:26:52 pm AEDT
> To:
> Subject: Corvids
>
> I'm at a small shopping centre in Sydney's inner west, & it seems like
> there's both Australian Ravens & Torresian Crows present--
>
> Is this possible?
>
> Judith
>
> Reply to:
> JLA
> This note's from the mobile.
>
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