23 May 2019 – no casualties but two bonus warblers

The Noble Research Center claimed no new victims overnight, but there was a dead Ovenbird at the Food and Agricultural Products Center this morning, and Eric Duell pointed out a dead Common Yellowthoat on the north side of the Kerr-Drummond complex.

5 October 2017 – Ovenbird

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Regular readers might recall that I encountered this broken window on Labor Day.  I reported it that day, and it took three weeks for anyone to even apply caution tape. This week I encountered two window fellas replacing it with a bright new window.

Unfortunately, the new one was a little too clean for this Ovenbird, only the second I’ve had at the NRC.

This was an AHY-U bird, bulging with fat (coded to a 3) and tipping the scale at 23.5g.

 

28 September 2017 – Our first Savannah Sparrow, a trapped yellowthroat, and some bonus birds

Since Monday night, we seem to have received at least 5 inches of rain here in Stillwater.  That’s great as I’ve been lamenting the lack of even clouds for a few weeks. The system that brought the rain might have kept birds bottled up to our north because once it cleared last night (Wed.) there was one heck of a flight.

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Of course, attempts to correlate window collision mortality with big radar echoes of migrating birds are fraught with confirmation bias.  There are plenty of big flights that result in no dead birds on my rounds, and I’m a lot more likely to check “last night’s radar” on a morning when I find multiple casualties.  Today was one of those days.

I walked to the Noble Research Center on a route that took me past the long row of windows on the southern side of the Food and Agricultural Products Building, aka, FAPC. This is just across a parking lot from the NRC and I’ve made several incidental finds there.  Today, these “bonus birds” numbered three: an Ovenbird, a Common Yellowthroat (collected) and, around the corner, a female Indigo Bunting that had been there for at least a few days. So before I even made it to the NRC, I encountered 3 window-killed birds.

The yellowthroat was an apparent AHY-male, with fat = 2 and weighing in at 12 g.

 

At the NRC was another surprise.  Surprisingly, after all these years and considering how common these birds are as migrants and wintering residents, I found the project’s first Savannah Sparrow, in the northwest alcove.

 

 

There was also a trapped Common Yellowthroat at the main north entrance and another Savannah sparrow flitting around – through not trapped – just west of the southern portico entrance. The Savannah Sparrow was AHY-U, weighing 18g with a fat score = 2.

24 May 2015 – the first Ovenbird

This morning I found the 51st species casualty on the project – a horribly drenched Ovenbird that needed a couple of hours in front of my space heater to dry out and reclaim its former beauty.

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Can you see it? I can.

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At this point, I already knew what it was. That belly was just too white.

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This was a southeast alcove casualty:

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Once dried and re-sheveled, I could tell that this beauty was an after-second-year bird, but its sex could not be determined.  What was obvious was that it was bulging with fat in the furcular hollow and all across the belly.  This bird was in prime condition.

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