I’ve been behind with stacks of papers to grade, and they’ve kept me from keeping up as often as I’d prefer. During the period from October 7–18, I conducted 8 surveys, skipping Oct. 8, 14, and 15. The data from these last 11 days look a bit like this:
Oct. 7: HOWR
Oct. 9: no casualties
Oct. 10: no casualties
Oct. 11: LISP
Oct. 12: TUTI
Oct. 13: no casualties
Oct. 16: OCWA, SOSP, LISP, and NAWA
Oct. 17: no casualties
Oct. 18: no casualties
Just past mid-October, and we are crushing the annual mortality count right now with 55 dead birds.
Oct. 7 – I found just the third House Wren on the project. This one ended up on a warm air outflow grate from the air conditioning unit and was quickly desiccated.
Oct. 11 – I collected this Lincoln’s Sparrow from the south portico.
Oct. 12 – This Tufted Titmouse was a surprise in the southwestern alcove.
Oct. 16 – This was not a good day for migrants. I found an Orange-crowned Warbler at the northeast alcove, a Song Sparrow at the south portico, and a Lincoln’s Sparrow at the southwestern alcove. Shortly after completing my survey, a Nashville Warbler was turned in from a collision in the southwestern alcove.
The Mourning Dove was still there this morning, but it has been disturbed a bit and is now on its back.
New this morning was an unfortunate Lincoln’s Sparrow at the main north entrance to the NRC. As is so often puzzling, this was a bird that had to have been traveling south to hit the glass there even though the net movement of Lincoln’s Sparrows in April in Oklahoma is north.
This bird had 0 fat, was of indeterminate sex, and looks to be a SY. Note trauma to the bill tip indicating the point of collision.
Flight calls abounded last night as I walked the dog at least thrice. Those calls – little tsips! and tseeps! sounded to me like sparrows flowing from the north after three straight days of strong winds blowing from the south. A quick check of Paul Hurtado’s Nexrad radar birds page confirmed a big push in Midwest and the Plains:
Sadly, with that push came two casualties at the Noble Research Center: a Lincoln’s Sparrow (AHY-U with fat = 2) at the southwest alcove and a Common Yellowthroat (AHY-M with fat = 2) at the northwest alcove. (Apologies for the shaky portrait on the Yellowthroat – it looked clear on my phone.)
Although casualties continue to pile up in the west alcoves where I’ve treated several windows with ABC Bird Tape, it has so far appeared to be the untreated panes in those alcoves that are claiming the casualties.
Today I found a stunned Lincoln’s Sparrow on the south portico (no photo).
The bird couldn’t fly well, but it could fly. I decided to give it the “perch test” to determine if I should consider it to be a casualty or simply a trapped bird. Once able to catch it, I walked the bird south toward Edmond Low Library and found it a dense and secluded place to perch and rest where it might feel protected – or at least better protected than out in the open of the portico. I was pleased to see that the bird grasped a branch strongly and seemed to perch well. This one had me on the fence a bit, but I ultimately logged it as trapped. Though stunned, it seemed otherwise healthy with fat score = 2.