Date: 11/4/25 7:47 am
From: Rudyard Wallen via groups.io <arelist12...>
Subject: [EBB-Sightings] Red-naped Sapsucker at Niles Community Park
Hi Folks,

At first blush this bird seems to be a female. The red cap is more
extensive and reaches farther back, the black eye stripe is narrower, the
black submustachial is stronger and reaches farther back. The red in the
throat is a slightly smaller patch than you generally see in males. And
lastly in one of the original photos taken by the finder, Madhavi B., you
can see a small white crescent between the bill and the throat.
https://macaulaylibrary.org/asset/644286408

The bend where the black malar connects to the back bib appears weak due to
veiling. Fresh basic plumage with pale fringes that will eventually wear
off. Much like a fresh meadowlark with a tan breast and a vague black V -
once the tips wear off it then resembles the bird we typically see. This
veiling tripped me up and I wondered if this was a hatch year female.

You can see some similarities on this adult female, and it took 24 days of
attempts before getting this shot
https://macaulaylibrary.org/asset/208826231
of a bird that otherwise appeared to have a red throat

When ageing Spring birds the main focus is on the white greater coverts
(though in any situation an open wing shot is golden). Fall birds are more
difficult, and often require an open wing photo. Monitoring the images of
this bird led to this image by Peter S.
https://macaulaylibrary.org/asset/644503216

Unlike passerines, woodpeckers have an extraordinary molt pattern. Rather
than molt flight feathers in a straight sequence, scroll to the images on
pg 6 (or p450) and pg 8 (or p452) to see the patterns
https://www.birdpop.org/docs/pubs/Pyle_Schofield_2023_Sapsucker_Molt.pdf
<https://www.birdpop.org/docs/pubs/Pyle_and_Howell_1995_Flight_Feather_Molt_Patterns_and_Age_in_NA_Woodpeckers.pdf>

The significance being it's possible to age individuals up to three or four
years of age

Peter Pyle's assessment from Peter S's image-

"Secondaries S3 and S4 are basic, so at least 3+ years old. Secondaries
S5 and S6 look new. Adult female."

Confused? Watch this 38 minute explanation on woodpecker molt
https://www.youtube.com/watch?v=ahVQd3iZuqc


It's also possible this bird has a small bit of Red-breasted influence.
Note the red within the black collar here
https://ebird.org/checklist/S281939520

If you've uploaded images of this bird and tagged it as male, please change
it to female, and additionally tag it as adult:
from your checklist click on> manage media> click on image> fill in grid
under Age/Sex

Note that comments are a different, and as far as I know, unsearchable
field. This helps researchers immensely, as a filtered search in Macaulay
library for an adult female RNSA eliminates images that aren't tagged- so
it requires a lot more digging

Please email me off list if you have questions on this

cheers,

Rudy W
SF


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