Where Have All the Yellow-rumps Gone?

 CAPTAIN SAMS

We banded 14 new birds and had 30 recaptures of 9 species.  Yellow-rumped Warbler numbers are way down compared to last fall.  Last season, we banded 1,047 of them with 510 coming in the last two weeks.  So far this season we've only banded 497 of them  with 4 day left in the season, and over the last two weeks have banded 155.  We have had a relatively mild fall, and wonder if they just haven't made it down this far south yet.  Banding conditions were nearly perfect today (cool, low winds, overcast) and I would have expected that the banding station would have been crawling with Yellow-rumps.  A wind shift to the northwest will occur tonight and continue for the next couple of day, so hopefully if there are still Yellow-rumps up north they will ride the winds south down to KIBS. 

-Aaron

Note:  All banding, marking, and sampling is being conducted under a federally authorized Bird Banding Permit issued by the U.S. Geological Survey’s BBL

Species	Captain Sams		Little Bear
	New	Recaps	New	Recaps
Downy Woodpecker	-	1	-	-
Carolina Chickadee	-	1	-	-
Ruby-crowned Kinglet	-	4	-	-
House Wren	-	2	-	-
Gray Catbird	-	1	-	-
Hermit Thrush	-	3	-	-
White-throated Sparrow	1	-	-	-
Yellow-rumped Warbler (Myrtle)	13	17	-	-
Northern Cardinal	-	1	-	-

Today's Banding Stats	Captain Sams	Little Bear	TOTAL
# Birds Banded	14	-	-
# of Recaptures	30	-	-
# of Species	9	-	-
Effort (net-hours)	192.5	-	-
Capture Rate (birds/100 net-hours)	22.9	-	-
# of Nets	32	-	-

2023 Fall Cumulative Banding Stats	Captain Sams	Little Bear	TOTAL
# Birds Banded	4,575	3,380	7,955
# of Recaptures	1,236	729	1,965
# of Species	85	86	100
Effort (net-hours)	16,470.2	9,293.95	25,764.2
Capture Rate (birds/100 net-hours)	35.3	44.2	38.5
# of Days	100	78	-

Banding Staff

Aaron Given (CS)

Sean Dowd (CS)