Date: 8/26/20 5:18 pm
From: Hendrik Herlyn <hhactitis...>
Subject: [obol] Re: finch
I've done a cursory check of Carpodacus species and have failed to come up
with a viable candidate - but I didn't dig very deep. To me, the mystery
finch's features look inconsistent with the Common Rosefinch of Western
Europe, the only Carpodacus species I have personal experience with.


On Wed, Aug 26, 2020 at 5:11 PM larspernorgren <larspernorgren...>

> Has anyone checked images of true Carpodacus? The Rose finches of Eurasia.
> I'm too lazy. But the genus has been documented to make substantial
> migrations such as Sweden to Kazahkstan. And is apparently the source of
> the Hawaiian Honeycreepers.
> Sent from my Verizon, Samsung Galaxy smartphone
> -------- Original message --------
> From: Wayne Hoffman <whoffman...>
> Date: 8/26/20 4:55 PM (GMT-08:00)
> To: obol <obol...>
> Subject: [obol] finch
> Hi -
> Opinion seems to be coalescing on second-summer male Purple Finch in molt,
> as the identity of this bird, and this may well be correct. Some comments
> have suggested that its appearance is fairly normal for this age/molt
> stage. If this age diagnosis is accurate, however, it means that the
> red/pink/purple-tipped feathers all have to be new feathers, as this molt
> would be where red/pink/purple colors first appear. And if that is the
> case, the disheveled appearance particularly of the crown, eyes, and face
> must mean something else is going on (injury? skin disease?). IMO these
> feathers are not all new, i.e., this bird is older.
> I have not studied molting Purple Finches, and do not have much
> knowledge of the appearance of birds of this age, but several aspects of
> its appearance conflict with my preconceptions. I hope that banders and
> other OBOLites with more relevant experience can address this mismatch:
> 1. The patchy tawny color on the belly (e.g., frame 7340) seems wrong for
> any Haemorhous species?
> 2. My impression of Purple Finch wings and tail are that they should be
> "colder" - less tawny? Are these colors typical?
> 3. Is the bill shape (degree of curvature of culmen and width across the
> base of the mandibular sheath) within the normal range for Purple Finch?
> Thanks
> Wayne

Hendrik G. Herlyn
Corvallis, OR

*"Nature is not a place to visit. It is home." -- Gary Snyder*

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