Black-chinned Hummingbird — BCHU
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Black-chinned Hummingbird male after hatch year
Black-chinned Hummingbird male after hatch year
The iridescence in the above shot does not present itself often, this is a more typical observation:
Black-chinned Hummingbird male after hatch year
Black-chinned Hummingbird male hatch year
Black-chinned Hummingbird male hatch year
Black-chinned Hummingbird female after hatch year.
Note how worn the feathers are. This shot was taken in late summer.
All of the hatch year birds would show fresh feathers in August. The gorget is lightly patterned.
Black-chinned Hummingbird female after hatch year
Black-chinned Hummingbird female hatch year. Note the fresh plumage and the lack of throat pattern.
Black-chinned Hummingbird female hatch year
Black-Chinned Hummingbird aging and sexing based on the tail.
Black-chinned Hummingbird tail
Black-chinned Hummingbird male after hatch year tail
Black-chinned Hummingbird male after hatch year tail diagram
Black-chinned Hummingbird male after hatch year
Black-chinned Hummingbird male hatch year tail
Black-chinned Hummingbird male hatch year tail diagram
Black-chinned Hummingbird male hatch year
Black-chinned Hummingbird male hatch year
asymmetrical molt
Black-chinned Hummingbird BCHU
Black-chinned Hummingbird female after hatch year tail
Black-chinned Hummingbird female after hatch year tail diagram
Black-chinned Hummingbird female after hatch year
Black-chinned female hatch year tail
Black-chinned Hummingbird female hatch year tail diagram
Black-chinned Hummingbird female hatch year
Black-chinned Hummingbird Wing
These postmortem images of a Black-chinned Hummingbird wing shows a few distinct diagnostics.
P10 is wide, curved, and with a very rounded end.
The shape of the primary ends and how the rachis splits the feather combine to be unique to this species.
Black-chinned Hummingbird wing
Note that each primary from P10 to P1 become progressively more narrow.
Black-chinned Hummingbird wing
The tail is slightly longer than the tips of the wings.
Black-chinned Hummingbird tail
A bit fuzzy…
BCHU yap
Black-chinned Hummingbird — BCHU auricular study
Black-chinned Hummingbird — BCHU
Black-chinned Hummingbird BCHU sonus auricular
Black-chinned Hummingbird BCHU sonus auricular
Black-chinned Hummingbird BCHU barb spacing
Black-chinned Hummingbird BCHU barb spacing
Black-chinned Hummingbird BCHU barb angle
Black-chinned Hummingbird BCHU barb angle
Black-chinned Hummingbird BCHU plucked auriculars
Black-chinned Hummingbird BCHU plucked auriculars
Microscopy @ 50x 150x 300x proximal sonus auricular.
Black-chinned Hummingbird BCHU proximal sonus
Distal and medial microscopy.
Black-chinned Hummingbird BCHU distal auricular
Black-chinned Hummingbird BCHU
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