Jul 011999
 

Black-chinned Hummingbird — BCHU

Click here for auricular study

Black-chinned Hummingbird male after hatch year

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 after hatch year

Black-chinned Hummingbird male 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 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 female hatch year

Black-Chinned Hummingbird aging and sexing based on the tail.

Black-chinned Hummingbird 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 tail diagram

Black-chinned Hummingbird male after hatch year

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 tail diagram

Black-chinned Hummingbird male hatch year

Black-chinned Hummingbird male hatch year

Black-chinned Hummingbird male hatch year

asymmetrical molt

Black-chinned Hummingbird BCHU

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 tail diagram

Black-chinned Hummingbird female after hatch year

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 tail diagram

Black-chinned Hummingbird female hatch year

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

Black-chinned Hummingbird wing

Note that each primary from P10 to P1 become progressively more narrow.

Black-chinned Hummingbird wing

Black-chinned Hummingbird wing

The tail is slightly longer than the tips of the wings.

Black-chinned Hummingbird tail

Black-chinned Hummingbird tail

A bit fuzzy…

BCHU yap

BCHU yap

Black-chinned Hummingbird — BCHU auricular study

Black-chinned Hummingbird --- BCHU

Black-chinned Hummingbird — BCHU

Black-chinned Hummingbird BCHU sonus auricular

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 spacing

Black-chinned Hummingbird BCHU barb angle

Black-chinned Hummingbird BCHU barb angle

Black-chinned Hummingbird BCHU barb angle

Black-chinned Hummingbird BCHU plucked auriculars

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

Black-chinned Hummingbird BCHU proximal sonus

Distal and medial microscopy.

Black-chinned Hummingbird BCHU distal auricular

Black-chinned Hummingbird BCHU distal auricular

Black-chinned Hummingbird BCHU

 

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