Monthly Archives: May 2025
A Spring Migration Push
Island Park Reservoir
On our way home we had three Lesser Yellowlegs and fifteen or so Wilson’s Phalaropes on a snow melt pond out in the sagebrush. The next couple weeks will be prime time for shorebirds here so I’ll try to get out there a few more times.
Cliff
—
Cliff and Lisa Weisse
Island Park, Idaho
cliffandlisa@…
Re: Finally
Re: Golden Plover ID
Re: Golden Plover ID
Re: Golden Plover ID
On May 3, 2025, at 1:28 PM, Cliff Weisse via groups.io <cliffandlisa@…> wrote:
I’m not asking for anything. I just thought there would be
interest in the ID criteria.Cliff
On 5/3/25 01:20PM, Ken Miracle via
groups.io wrote:
I have seen that comparison of the primaries and tail on several
ebird checklists including RLRowlands and others who saw the bird
and many better photos than Kent’s that show what you are asking
to see so not sure what you are asking for?On May 3, 2025, at 1:06 PM, Cliff Weisse via groups.io
<cliffandlisa@…> wrote:
I’ve looked at more than 20 eBird checklists for the
Pacific Golden Plover at Black’s Creek. I don’t see much
mention of the relative length of
Primaries/Tertails/Tail that is the only reliable way to
separate American and Pacific without calls. It works in
any plumage with the only caveat being that it may not
work for molting birds.Breeding plumage Americans with no white on the flanks
are straight forward but during molt they can look like
much like Pacifics, and juveniles are very similar. The
long bill and long legs can be helpful but a good look
at the Primary/Tertial/Tail relationship can make it
easy. Here are the important points taken from this
article “Morphometric features of Pacific and
American Golden-Plovers with comments on field
identification”
(https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=9bc92b3f984f118928e8f292158d19a586cc53ea):
– Pacific has 2-3 primaries visible beyond tertials,
American has 4-5
– tertials extend to distal third of tail, ending at or
near tail tip in most Pacific, from half to distal third
of tail on American
– wing tip extends past end of tail more on American
than Pacific, with little or no overlap
– tips of outer two primaries are closer together on
Pacific, with some overlap.With a good look at the rear end of the bird these
differences create a different overall look, even if you
can’t see the details clearly. Kent’s original photo
that was posted to IBLE is a good example – it hints at
Pacific with tertials appearing to extend nearly to end
of tail and very short primary tips visible. You can’t
quite see the details but there is enough to suggest the
need for a closer look. After reviewing the above linked
article I did a Google search for photos and these
features are clearly visible in countless examples of
both species. If you want to get a better handle on
Golden Plovers I’d recommend reading the article and
spending some time looking at photos.Cliff
-- Cliff and Lisa Weisse Island Park, Idaho cliffandlisa@...Ken
Miracle
chukar28@…
208-570-2780
“Not that we are sufficient in ourselves to claim anything as
coming from us, but our sufficiency is from God” 2COR 3:5-- Cliff and Lisa Weisse Island Park, Idaho cliffandlisa@...
chukar28@…
208-570-2780
“Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God” 2COR 3:5
Re: Golden Plover ID
I’m not asking for anything. I just thought there would be
interest in the ID criteria.
Cliff
groups.io wrote:
I have seen that comparison of the primaries and tail on several
ebird checklists including RLRowlands and others who saw the bird
and many better photos than Kent’s that show what you are asking
to see so not sure what you are asking for?On May 3, 2025, at 1:06 PM, Cliff Weisse via groups.io
<cliffandlisa@…> wrote:
I’ve looked at more than 20 eBird checklists for the
Pacific Golden Plover at Black’s Creek. I don’t see much
mention of the relative length of
Primaries/Tertails/Tail that is the only reliable way to
separate American and Pacific without calls. It works in
any plumage with the only caveat being that it may not
work for molting birds.Breeding plumage Americans with no white on the flanks
are straight forward but during molt they can look like
much like Pacifics, and juveniles are very similar. The
long bill and long legs can be helpful but a good look
at the Primary/Tertial/Tail relationship can make it
easy. Here are the important points taken from this
article “Morphometric features of Pacific and
American Golden-Plovers with comments on field
identification”
(https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=9bc92b3f984f118928e8f292158d19a586cc53ea):
– Pacific has 2-3 primaries visible beyond tertials,
American has 4-5
– tertials extend to distal third of tail, ending at or
near tail tip in most Pacific, from half to distal third
of tail on American
– wing tip extends past end of tail more on American
than Pacific, with little or no overlap
– tips of outer two primaries are closer together on
Pacific, with some overlap.With a good look at the rear end of the bird these
differences create a different overall look, even if you
can’t see the details clearly. Kent’s original photo
that was posted to IBLE is a good example – it hints at
Pacific with tertials appearing to extend nearly to end
of tail and very short primary tips visible. You can’t
quite see the details but there is enough to suggest the
need for a closer look. After reviewing the above linked
article I did a Google search for photos and these
features are clearly visible in countless examples of
both species. If you want to get a better handle on
Golden Plovers I’d recommend reading the article and
spending some time looking at photos.Cliff
-- Cliff and Lisa Weisse Island Park, Idaho cliffandlisa@...Ken
Miracle
chukar28@…
208-570-2780
“Not that we are sufficient in ourselves to claim anything as
coming from us, but our sufficiency is from God” 2COR 3:5
-- Cliff and Lisa Weisse Island Park, Idaho cliffandlisa@...
Re: Golden Plover ID
On May 3, 2025, at 1:06 PM, Cliff Weisse via groups.io <cliffandlisa@…> wrote:
I’ve looked at more than 20 eBird checklists for the Pacific
Golden Plover at Black’s Creek. I don’t see much mention of the
relative length of Primaries/Tertails/Tail that is the only
reliable way to separate American and Pacific without calls. It
works in any plumage with the only caveat being that it may not
work for molting birds.Breeding plumage Americans with no white on the flanks are
straight forward but during molt they can look like much like
Pacifics, and juveniles are very similar. The long bill and long
legs can be helpful but a good look at the Primary/Tertial/Tail
relationship can make it easy. Here are the important points taken
from this article “Morphometric features of Pacific and
American Golden-Plovers with comments on field identification”
(https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=9bc92b3f984f118928e8f292158d19a586cc53ea):
– Pacific has 2-3 primaries visible beyond tertials, American has
4-5
– tertials extend to distal third of tail, ending at or near tail
tip in most Pacific, from half to distal third of tail on American
– wing tip extends past end of tail more on American than Pacific,
with little or no overlap
– tips of outer two primaries are closer together on Pacific, with
some overlap.With a good look at the rear end of the bird these differences
create a different overall look, even if you can’t see the details
clearly. Kent’s original photo that was posted to IBLE is a good
example – it hints at Pacific with tertials appearing to extend
nearly to end of tail and very short primary tips visible. You
can’t quite see the details but there is enough to suggest the
need for a closer look. After reviewing the above linked article I
did a Google search for photos and these features are clearly
visible in countless examples of both species. If you want to get
a better handle on Golden Plovers I’d recommend reading the
article and spending some time looking at photos.Cliff
-- Cliff and Lisa Weisse Island Park, Idaho cliffandlisa@...
chukar28@…
208-570-2780
“Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God” 2COR 3:5
Golden Plover ID
I’ve looked at more than 20 eBird checklists for the Pacific
Golden Plover at Black’s Creek. I don’t see much mention of the
relative length of Primaries/Tertails/Tail that is the only
reliable way to separate American and Pacific without calls. It
works in any plumage with the only caveat being that it may not
work for molting birds.
Breeding plumage Americans with no white on the flanks are
straight forward but during molt they can look like much like
Pacifics, and juveniles are very similar. The long bill and long
legs can be helpful but a good look at the Primary/Tertial/Tail
relationship can make it easy. Here are the important points taken
from this article “Morphometric features of Pacific and
American Golden-Plovers with comments on field identification”
(https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=9bc92b3f984f118928e8f292158d19a586cc53ea):
– Pacific has 2-3 primaries visible beyond tertials, American has
4-5
– tertials extend to distal third of tail, ending at or near tail
tip in most Pacific, from half to distal third of tail on American
– wing tip extends past end of tail more on American than Pacific,
with little or no overlap
– tips of outer two primaries are closer together on Pacific, with
some overlap.
With a good look at the rear end of the bird these differences
create a different overall look, even if you can’t see the details
clearly. Kent’s original photo that was posted to IBLE is a good
example – it hints at Pacific with tertials appearing to extend
nearly to end of tail and very short primary tips visible. You
can’t quite see the details but there is enough to suggest the
need for a closer look. After reviewing the above linked article I
did a Google search for photos and these features are clearly
visible in countless examples of both species. If you want to get
a better handle on Golden Plovers I’d recommend reading the
article and spending some time looking at photos.
Cliff
-- Cliff and Lisa Weisse Island Park, Idaho cliffandlisa@...