Fwd: Corvids

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: jlukin01@postoffice.csu.edu.au
JLA
This note’s from the mobile.

Begin forwarded message:

> From: Judith L-A < jlukin01@gmail.com>
> Date: 27 January 2017 at 2:26:52 pm AEDT
> To: birding-aus@birding-aus.org
> 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: jlukin01@postoffice.csu.edu.au
> JLA
> This note’s from the mobile.
>