Saturday, August 22, 2020 8:46 AM
To: Colorado Birds
Subject: [cobirds] variation in juvenile Cliff Swallows
Hey, all.
Leaving aside for now the question of HOW juvenile cliff swallows are variable,
I thought it would be cool to ask WHY juvenile cliff swallows are variable.
Ask, and it will
Hey, all.
Leaving aside for now the question of HOW juvenile cliff swallows are
variable, I thought it would be cool to ask WHY juvenile cliff swallows are
variable. Ask, and it will be given you:
https://academic.oup.com/auk/article/131/2/121/5148982
The preceding is a link to a 2014 paper
The cautionary notes about variation among gulls at Warren Lake and the
difficulty of ID'ing every one have been great!
Thanks for all of them! Let's have more.
Upon reflection could it be that a big part of the problem (my problem too)
is "how we learned to ID birds" when we were first bit
by
Hi:
I’m not necessary a “Guller” but I am a believer in variation. There is
probably more variation within a species than we like to believe. Darwin was
constantly confused by variation and I think that theme is still with us today
particularly obvious within the Large-white-Headed Gull
