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Lesser Yellowlegs, or Greater?


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#1 jajean

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Posted 06 May 2012 - 04:37 PM

Yesterday in Puebla, central mexico. It looks like lesser to me.

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#2 NatureLady

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Posted 06 May 2012 - 04:44 PM

I'm seeing Greater YL the bill length on Greater is 1 1/2 x head length and only 1x length of head on Lesser, and this bill is longer then the head length.

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#3 adm7075

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Posted 06 May 2012 - 04:47 PM

Greater Yellowlegs, for same reasons as Naturelady.
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#4 TheBillyPilgrim

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Posted 06 May 2012 - 04:53 PM

Agree with Greater.

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#5 birder boy11

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Posted 06 May 2012 - 08:36 PM

To me it looks like a Greater because the lesser has a smaller bill that is real straight and the greater has a bit of an upturned bill like in the picture.Also the Greater has a thicker bill.

#6 jajean

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Posted 07 May 2012 - 03:27 AM

Im still seeing Lesser. The bill is less than 1.5 times the width of the head. Its a little longer than the head for sure, but not as long as Greater, i dont think. I found this photo online of a Greater. http://www.birdsasart.com/bn182.htm. I can really see the 1.5 ratio here. and here. http://www.birdsasart.com/bn169.htm.

I could be wrong. It seems that when I see a Greater or Lesser, the beak is never 1.5 times the length of the head and never 1 times the length of the head.

#7 Joejr14

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Posted 07 May 2012 - 04:33 PM

Im still seeing Lesser. The bill is less than 1.5 times the width of the head. Its a little longer than the head for sure, but not as long as Greater, i dont think. I found this photo online of a Greater. http://www.birdsasart.com/bn182.htm. I can really see the 1.5 ratio here. and here. http://www.birdsasart.com/bn169.htm.

I could be wrong. It seems that when I see a Greater or Lesser, the beak is never 1.5 times the length of the head and never 1 times the length of the head.


The bird is 100% a Greater Yellowlegs. The head angle is what is causing the problem here when trying to determine length. But, if you look at the bill it is long, it's upturned at the tip, and if you look closely you can see that the primaries barely reach beyond the tail.

And actually, using my thumb it sure looks good for 1.5x the head as far as length.

#8 TheBillyPilgrim

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Posted 07 May 2012 - 05:24 PM

I agree with Joe Jr. The head angle makes the bill look a little shorter than it is, but this is definitely a Greater Yellowlegs.

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#9 Grandpa577

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Posted 07 May 2012 - 05:38 PM

The bird is 100% a Greater Yellowlegs. The head angle is what is causing the problem here when trying to determine length. But, if you look at the bill it is long, it's upturned at the tip, and if you look closely you can see that the primaries barely reach beyond the tail.

And actually, using my thumb it sure looks good for 1.5x the head as far as length.

My general impression is that it the bill does not appear upturned nor does it appear as long as I would expect in a Greater Yellowlegs. There is very limited barring to the undersides (which may be due to the angle the bird is holding its wing). While I am leaning towards agreeing with Greater, my first impression was Lesser. '100%' and 'definitely' don't come into it.

Hope you get a good shot of a Lesser Yellowlegs (preferably standing next to a Greater Yellowlegs) soon, jajean.




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