I received 3 answers from people having experience with Pacific Loons and they concluded on Common, a recurrent argument was the shape of the bill and head which are in the range for Common Loon. I had never seen a Common Loon in this transition plumage (especially without a broken black border on neck and with this chinstrap) so this was interesting. I updated the ebird report accordingly. Many thanks to the people that contributed.
Best, Matthieu On 12/11/2017 09:53 AM, Matthieu [email protected] [ebirdsnyc] wrote: > > I received a note saying that the bird is an Adult common Loon. I welcome any > point of view especially with arguments so that I can change the ID of this > Loon if needed. > > Thanks, > > Matthieu > > On 12/11/2017 01:12 AM, Matthieu wrote: > > I spent the afternoon birding at Fort Tilden. The highlight was a Pacific > > Loon. The Loon appeared stationary at position 40° 33' 31.5108'' N 73° 53' > > 12.6852'' W, which is between Battery Harris and Battery 220 on the > > Atlantic side of Fort Tilden. It was still there when I left this area > > during the late afternoon. I confirmed the ID just after dark by checking > > the pictures I took. > > > > There was also a good flight of Gannets (1750, almost all passed between 2 > > pm and 3:30 pm). > > > > Illustrated checklist with pictures of the Loon and most bird seen: > > http://ebird.org/ebird/view/checklist/S41023673 > > > > Matthieu > > > > > > > > -- > > > > NYSbirds-L List Info: > > http://www.NortheastBirding.com/NYSbirdsWELCOME.htm > > http://www.NortheastBirding.com/NYSbirdsRULES.htm > > http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm > > > > ARCHIVES: > > 1) http://www.mail-archive.com/[email protected]/maillist.html > > 2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L > > 3) http://birding.aba.org/maillist/NY01 > > > > Please submit your observations to eBird: > > http://ebird.org/content/ebird/ > > > > -- > > > > __._,_.___ > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ > Posted by: Matthieu <[email protected]> > 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