Saturday, October 28, 2017

October 28, 2017

Captain Sam's

Unfortunately today was yet another slow day out at Captain Sam's. The majority of our captures today were recaptures from this season and a few recaptures from last year. Some of which landed in the nets more than once. One interesting recapture from today was an Adult Male Yellow-rumped Warbler that was banded last year on Nov. 15th. This bird was initially captured and banded as a Hatch-year male with a wing length of 72mm. Today when we recaptured him we measured his wing length to be 75mm. In general, birds with shorter and rounder wings are typically built for agility and maneuverability. While birds with longer pointed wings are better equipped for long fast flights at minimal energy expenditure. Some studies suggest that younger birds may feel more selective pressures to have shorter and more rounded wings in order to better avoid predators (http://aukjournal.org/doi/full/10.1525/cond.2008.8396). Its always interesting to recapture birds from previous years and learn as much as possible from each one!

-Kristen


Little Bear

Today was a fairly uneventful day out at Little Bear, with 40 newly banded birds and 10 recaptures of 12 species. We were missing some of the thrushes and sparrows that had been coming through in the past few days; instead seeing good numbers of Yellow-rumped Warblers and Gray Catbirds, among many of our regular species.

A nice after hatch-year female Common Yellowthroat

-Hannah


SpeciesCaptain Sam'sLittle Bear
NewRecapsNewRecaps
Common Ground Dove
-
1
-
-
Red-eyed Vireo
1
-
-
-
Carolina Chickadee
-
3
-
-
House Wren
-
-
2
-
Carolina Wren
-
-
-
1
Ruby-crowned Kinglet
-
1
1
-
Gray Catbird
11
17
7
5
Northern Mockingbird
1
1
-
-
Eastern Towhee
-
-
1
-
Song Sparrow
1
-
2
-
Swamp Sparrow
1
1
-
-
White-throated Sparrow
1
-
-
-
Ovenbird
1
-
-
-
Northern Waterthrush
-
-
1
-
Orange-crowned Warbler
-
1
-
-
Common Yellowthroat
-
1
3
2
Yellow-rumped Warbler (Myrtle)
17
2
20
1
Prairie Warbler
-
-
1
-
Northern Cardinal
-
1
-
1
Indigo Bunting2---
Painted Bunting 1-2-



 Banding StatsCaptain Sam'sLittle BearTOTAL
# Birds Banded
37
40
77
# of Recaptures
29
10
39
# of Species
16
12
21
Effort (net-hours)
150.8
120
270.8
Capture Rate (birds/100 net-hours)
43.8
41.7
42.8
# of Nets
26
20
46


Banding Staff
Mattie VandenBoom (LB)
Michael Gamble (CS)
Kristen Oliver (CS)
Brandon Connare (LB)
Paul Carroll (CS)
Hannah Conley (LB)