The August warblers included Ovenbird (OVEN), Northern Waterthrush (NOWA), Golden-wing (GWWA), Black-and-White (BAWW), Prothonotary, Tennessee (TEWA), Nashville (NAWA), Connecticut (CONW), Mourning (MOWA), Common Yellowthroat (COYE), American Redstart (AMRE), Cape May (CMWA), Magnolia (MAWA), Bay-breasted (BBWA), Blackburnian (BLBW), Yellow, Chestnut-sided (CSWA), Blackpoll (BLPW), Black-throated Blue (BTBW), Western Palm (WPWA), Canada (CAWA), and Wilson's (WIWA) warblers.
An advantage to birds in the hand is the ability to gather demographics on species captured. This permits the determination the age of all birds and the sex of many. However, birds still sporting some of the juvenile plumage, such as these Song Sparrows (SOSP), could have their age determined in the field as well. The juvenile and basic plumage of the chest and face of these two separate Hatching Year (HY) bird and After Hatching Year bird (AHY). The loose feathers of the HY bird are noticeable with no real central chest spot in juvenile plumage.
|AHY Song Sparrow (left) and HY Song Sparrow (right)|
|AHY Song Sparrow (left) note spotted breast.|
HY Song Sparrow (right) with loose, yellowish/tan juvenile feathers
|HY Baltimore Oriole|
Note the pinkish lower mandible
|AHY Baltimore Oriole|
Note the slate-colored lower mandible.
|Eastern Wood Pewee|
Note the lack of a distinct eye ring and the bi-colored beak unlike Empidonax flycatchers
which have obvious eye rings. (Eastern Phoebe has an all dark beak.)
|Hatching-year Eastern Wood Pewee |
Note buffy olive-edged wing bars. Sitting with an open mouth, a typical behavior of flycatchers in the hand, allows the opportunity to observe the bright mouth lining.
|Back of Eastern Wood Pewee |
Note the buffy-edged upper tail coverts as well as buffy wing bars which is definitive of a HY bird.
|Here are two quiz birds that often trip birders up in the field. They look similar (especially in the field), but note the size difference, and the difference in the coloration of the throat.|
|Mourning Warbler (left) and Common Yellowthroat (right)|
Again, note the size difference.
|Hatching-year Common Yellowthroat |
Note the strong yellow throat. Up close it may look like a lighter colored eye ring but from a distance that will disappear or be less apparent.
|Mourning Warbler |
Larger than the COYE, the split eye ring may look similar on some fall COYEs.
Note the throat and chest of this MOWA are gray. The throat on a COYE is yellow.
Free Public Songbird Banding Demonstration at the Observatory on Saturday September 26th at 10:00 AM.