Ash-throated Flycatcher (HY, sex unknown) |
1. Bill width at the nares
2. The length of p10 minus the length of p4
The bill width at the nares was 6.9 mm which is smaller than the range for both Great Crested Flycatcher (7.4-9.2 mm) and Brown-crested Flycatcher (7.7-10.1 mm).
p10 minus p4 was -2.8 mm which means that the 4th primary feather was longer than the 10th primary feather. In both, Great Crested (2-9 mm) and Brown-crested (0-8 mm) that number will be greater than or equal to zero.
Note the light yellow wash of the belly, flanks, and undertail coverts. In Great Crested Flycatchers, the yellow would be much brighter. |
The brown coloration of the rectrices wraps around the tip of the feather. In all other Myiarchus flycatchers, the brown will not wrap around to the tip of the feather. |
Another look at the brown tipped rectrices. |
Entirely dark lower mandible. Great Crested Flycatcher will have a yellow-orange base to the lower mandible. |
Mouth-lining flesh colored in Ash-throated. Mouth lining yellow-orange in Great Crested. |
- Aaron
NEW BIRDS
1 Common Ground-Dove
1 Ash-throated Flycatcher
2 Ruby-crowned Kinglet
1 Hermit Thrush
2 Gray Catbird
32 Yellow-rumped Warbler (Myrtle)
1 Eastern Towhee
3 Song Sparrow
2 Swamp Sparrow
RECAPTURES
2 Common Ground-Dove
1 Carolina Chickadee
1 Ruby-crowned Kinglet
1 Hermit Thrush
4 Gray Catbird
1 Northern Cardinal
BANDING STATS
# of Birds Banded: 45
# of Recaptures: 10
# of Species: 11
Effort: 88.7 net-hours
Capture Rate: 62.0 birds/100 net-hours
# of Nets: 20 (but 5 nets were closed early due to wind)