Date: 10/23/18 7:30 am
From: Gregory Hanisek via CTBirds <ctbirds...>
Subject: [CT Birds] Cave vs Cliff
To emphasize the excellent points made by Stefan Martin today and
yesterday, it's rather late for Cliff Swallow and somewhat early for Cave
Swallow (which has been primarily a November arrival but with some recent
records for late Oct). In other words either is possible, so you can't make
any assumptions based on seeing the rump color. You've got to look at the
underside (seeing both surfaces on flying birds isn't always easy).

On Cave Swallow you want to see the uniform buffy underparts from throat
onto the breast with that color wrapping onto the "cheeks" and creating
strong contrast with the dark cap. Cliff Swallow has a very dark throat and
primarily white underparts. The forehead spot also is white on Cliffs we
expect to see here. Also, as Stefan noted, when looking at underparts
remember there are still some Barn Swallows around.

So try not to let your strong desire to see a Cave Swallow compromise the
extra time it may take to confirm an ID.

Greg Hanisek
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