[Tweeters] Robins & more

Frank Caruso fcaruso at umass.edu
Tue Jul 13 19:50:51 PDT 2021

I lived on Cape Cod for 28 years before moving to Edmonds in 2013. There
were two populations of Robins on the Cape. The 'southern' Robins (spending
winters largely in the southeast states) would arrive in March and become
less noticeable throughout the summer months, hanging around into October.
There would still be a few Robins around afterwards. The 'northern' Robins
would arrive in big numbers just before Christmas from Labrador, northern
Ontario and Quebec, hanging around into late February. They would feed on
the various berries and leftover fruits, sometimes in competition with
irruptive Bohemian Waxwing and Pine Grosbeak flocks. On our Mid-Cape CBC
there would sometimes be overnight roosts of 20,000 individuals in
Barnstable. The 'northern' Robins were darker above and slightly larger
than their 'southern' cousins.

Frank Caruso, Edmonds

On Tue, Jul 13, 2021, 4:54 PM David Hutchinson <florafaunabooks at hotmail.com>

> Michael, yes, I wonder what banding station info has to say, but it

> does seem likely that there are different populations of Robins in play.

> Another example might be Dark-eyed Junco that has a solid late Spring/

> Summer breeding population here until dwindling away August time. This

> is followed by seemingly another population descending on us late Sept/Oct.


> This balanced out by the neo-trop passerines just here for one season.David


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