Date: 9/12/17 6:31 pm From: Philip Dickinson <pdickins...> Subject: Re: [Tweeters] caution Blue-winged Teal vs Cinnamon Teal ID
Thanks, Gary. I made that mistake last year at Wylie. Today, the birds our Pilchuck Audubon group saw there were Cinnamons.
On Tue, Sep 12, 2017 at 5:58 PM, Gary Bletsch <garybletsch...> wrote:
> Dear Tweeters, > > Numerous recent eBird checklists have included sightings of Blue-winged > Teal from the Fir Island Game Range (Wylie Slough). I think most of those > were actually Cinnamon Teal in eclipse plumage. > > Some of those checklists include notes about ID being made on the basis of > wing pattern--"I noted the blue wing panel" or suchlike. > > The Blue-winged Teal and the Cinnamon Teal have almost identical wings. > They have a powder-blue patch on the upperwing, along with an emerald green > speculum and a white stripe in between. Northern Shovellers have almost the > exact same wing pattern, too. That's one indication of just how closely > related these three species are; along with a handful of other species that > are found in other lands, they were recently moved into their own genus, > *Spatula*, separate from *Anas *(the traditional genus of dabbling > ducks). > > I hardly ever see Blue-winged Teal in Skagit County after June. My > personal records, dating back to the late 1980's and early 1990's, include > a total of eleven BWTE sightings from the period of July through December. > The last time I saw one here in the latter part of the year was 2011. Six > of my eleven late-season BWTE sightings were from 2008, when an unusual > number of BWTE showed up around these parts. By contrast, I have found the > Cinnamon Teal 147 times during that same period--they are easily ten times > more common. > > This time of year, birders could learn about this ID problem by studying > the size and shape of the ducks' bills, the eye color, and the facial > pattern. Almost all of the small teal on Fir Island right now are Cinnamon > Teal and Green-winged Teal, and there are quite a few Shovellers out there > as well. With ducks in their eclipse plumage, one must exercise caution in > the ID. > > Yours truly, > > Gary Bletsch > > _______________________________________________ > Tweeters mailing list > <Tweeters...> > http://mailman1.u.washington.edu/mailman/listinfo/tweeters > >