If you look closely at the photo, there seem to be one or two short central
tail feathers that project beyond the rest of the tail feathers. This would be
consistent with a Parasitic Jaeger. I think that the overall proportions of
the bird (relatively heavy body and relatively short wings) are consistent with
a jaeger. I would expect that a Pomarine would show a white flash in the
shafts of the primaries, but that white flash isn't always as apparent in a
Parasitic. The bill looks somewhat odd, but could potentially be consistent
with a Parasitic.
Tim Janzen
On 11/19/2020 8:58 PM ed mcv <ed.mcvicker@xxxxxxxxx> wrote:
here
https://www.flickr.com/photos/10665268@N04/albums/72157609277544338/with/3038351657/
are a few photos of great-winged petrels from my march, 2008, cruise to new
zealand. the photo posted by harry is for me, at best, an impression - but
not of a great-winged petrel. a close look at the rump of the bird looks a
tad lighter than the rest of the upper plumage. it suggests the wavy barred
rump on a subadult light-phase parasitic.
best,
ed mcvicker
