30 April 2018 – Indigo Bunting

I found this ASY male Indigo Bunting at the southwestern alcove this morning. Fat = 2 and possible impact mark on the culmen.

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16 April 2018 – Northern Cardinal

The first casualty of 2018 – and the 334th on the project – was an AHY (after hatch year, i.e., adult) male Northern Cardinal at the southeast alcove. He was probably an ASY (after second year, i.e., definitively hatched prior to 2017), but one cannot be entirely sure because cardinals occasionally undergo a complete molt in preparation for their first breeding season, and it’s not possible to age them any more specifically than AHY based on plumage characters (i.e., molt limits) alone.

One thing is pretty obvious for this cardinal: The trauma at the tip of its bill indicates a significant collision took place. Evidently, he was attempting to fly through the pass-through illusion to the southwestern alcove.

I left the bird in place (actually a few meters off to the side so it wouldn’t get stepped on by traffic through that entrance) and it was present on the 17th and 18th, but gone on the 19th.

28 November 2017 – two Dark-eyed Juncos

Both on the west side; one north and one south. Both evidently adult males, too.  I left both in place for a removal trial.

16 September 2017 – Mourning Dove

I found this hatch-year Mourning Dove in front of the main north entrance today.

24 August 2017 – Mourning Warbler and Chipping Sparrow

On the heels of an impressive southbound flight last night,

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. . . I found two casualties this morning.

There was a HY Chipping Sparrow in the northwest alcove.  The bird had evidently been stepped on or perhaps run over by a maintenance vehicle. I left it in place for a removal trial.

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Also, near the main north entrance (actually at a west-facing facade in the corner) was a Mourning Warbler. The bold eyering and long undertail coverts looked tantalyzingly like a Connecticut Warbler. It was, however, an AHY-U Mourning Warbler. The bird was 13.5g and bulging with fat (3).

 

This was the 10th Mourning Warbler on the project.