Friday, October 24, 2014

FOS: Sharp-shinned Hawk

Today was a much better day with 97 new birds and 23 recaptures made up of 19 species.  The Yellow-rumped Warbler made its first big appearance at the station with 48 of them being banded today.  We had our first two Sharp-shinned Hawks of the season.  We had both a male and a female Sharp-shinned Hawk.  Most of the sharpies we band at KIBS are males which is likely due to the size difference between males and females.  In raptors, males can be significantly smaller than females.  This size difference can mean the difference of actually getting snagged in a mist net or just bouncing out.  The size difference also allows us to determine sex with just a wing measurement.  The female’s wing was 32mm longer than her male counterpart. 
Sharp-shinned Hawk (hatch year, female)
2 Sharp-shinned Hawk
2 Eastern Phoebe
2 House Wren
1 Golden-crowned Kinglet
7 Ruby-crowned Kinglet
2 Swainson’s Thrush
2 Hermit Thrush
12 Gray Catbird
1 Tennessee Warbler
5 Common Yellowthroat
1 Black-throated Warbler
6 Palm Warbler (Western)
48 Yellow-rumped Warbler (Myrtle)
1 Song Sparrow
5 Swamp Sparrow

1 Eastern Screech-Owl
1 Eastern Phoebe
1 House Wren
1 Carolina Wren
1 Ruby-crowned Kinglet
13 Gray Catbird
2 Common Yellowthroat
2 Northern Cardinal
1 Painted Bunting

# of New Birds:  97
# of Recaptures:  23
# of Species:  19
Effort:  143.75 net-hours
Capture Rate:  83.5 birds/100 net-hours
# of Nets:  23

Aaron Given
Mattie VandenBoom
Matt Zak
William Oakley

No comments:

Post a Comment