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Allen's Hummingbird ?


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Taken 1-30-2021 in the afternoon at Sepulveda Basin Wildlife Reserve, Van Nuys, CA.

The eBird charts for this hotspot show that there have not been any observations of Rufous Hummingbird between the 2nd week of Dec. and the 1st week of Feb. (1900-2021).

Also the charts indicate a high frequency of observations of Allen's Hummingbird in all 52 weeks of the year.

Even so, if the species of this bird cannot be confidently identified by these photos, is it best to ID it as Rufous/Allen's?

2021-01-30_Sepulveda_Basin_2354_ces.jpg

2021-01-30_Sepulveda_Basin_2360_ces.jpg

2021-01-30_Sepulveda_Basin_2364_ces.jpg

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Definitely Allen’s

It has a green back. I’m not sure if it’s totally out of range for Rufous (the photos themselves may not be 100% conclusive) but in the context of date, location, and the green back, it’s definitely an Allen’s

A spread tail photo would be conclusive in and of itself

Edited by AlexHenry
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10 hours ago, AlexHenry said:

Definitely Allen’s

It has a green back. I’m not sure if it’s totally out of range for Rufous (the photos themselves may not be 100% conclusive) but in the context of date, location, and the green back, it’s definitely an Allen’s

A spread tail photo would be conclusive in and of itself

On females, you need the tail spread, with males mostly need the color of the back.

I agree with Allen’s 

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3 hours ago, Avery said:

Keep in mind about 5% of the Rufous Hummer population can be Green-backed. I'd leave it as Rufous/Allen’s

I mean yeah, some adult male Rufous have green on their back, but usually it is just specks of green mixed in with the orange. I have never seen a Rufous with this much green on the back, though it might be theoretically possible.

The almost completely green back on this bird, combined with the context of date and location, make it super safe to call it Allen’s.

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