Hi Paul, No, I can not !
To hopefully "legitimize" this post, I'd like to share with the listserve the following information re: the slight differences in bill length between Rufous and Allen's Hummingbirds, which I gleaned from *The Hummingbirds of North America*, Paul A. Johnsgard, 1983/Smithsonian Institution: *Selasphorus rufus *_ Exposed culmen males 15-17.5 mm (ave. of 18, 16.5 mm), females 17-19 mm (ave. of 11, 18 mm). *Selasphorus sasin *_ Exposed culmen males 15-16.5 mm (ave. of 10, 15.9 mm), females 17-18.5 mm (ave. of 9, 17.8 mm). Cheers, Bob , On Sun, Nov 27, 2016 at 2:51 PM, Paul R Sweet <sw...@amnh.org> wrote: > Bob > > Can you point me to a reference that says bill length is a diagnostic > character for this species pair? > > Thanks, Paul > > > Paul Sweet > > Collection Manager > > Department of Ornithology > > American Museum of Natural History > > Central Park West at 79th Street > > New York, NY 10024 > > > > Tel: 212 769 5780 <(212)%20769-5780> > > Cell: 718 757 5941 <(718)%20757-5941> > > From: <bounce-121031393-11471...@list.cornell.edu> on behalf of robert > adamo <radamo4...@gmail.com> > Reply-To: robert adamo <radamo4...@gmail.com> > Date: Sunday, November 27, 2016 at 2:07 PM > To: "nysbirds-l@cornell.edu" <nysbirds-l@cornell.edu> > Subject: [nysbirds-l] ? selasphorus sp. hummingbird (Rufous or Allen's) > > Without again obtaining a discernible "tell-tale tail" photo, and in the > full knowledge of the extremely low odds of the Aquebogue bird being an > Allen's, after further perusing yesterday's, as well as today's, shots, it > seems the bill is too long for a Rufous, plus it appears to be slightly > de-curved. So...I'm led to ask the following question: has hybridization > ever been documented between these 2 species of the same genus ? > > Cheers > Bob 🙃 > -- > *NYSbirds-L List Info:* > Welcome and Basics > <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.northeastbirding.com%2FNYSbirdsWELCOME&data=01%7C01%7Csweet%40amnh.org%7C3ea2839c89b24ad7619f08d416f8b4e7%7Cbe0003e8c6b9496883aeb34586974b76%7C1&sdata=G5ijALkf9XFO%2FBxOJJGQsReutgPWBkyKXLiRmrOyJMI%3D&reserved=0> > Rules and Information > <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.northeastbirding.com%2FNYSbirdsRULES&data=01%7C01%7Csweet%40amnh.org%7C3ea2839c89b24ad7619f08d416f8b4e7%7Cbe0003e8c6b9496883aeb34586974b76%7C1&sdata=yvEnm3HhWR6Cw6EWy8nKbd2xIiO9KQVKv8XXxDTS%2FZE%3D&reserved=0> > Subscribe, Configuration and Leave > <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.northeastbirding.com%2FNYSbirdsSubscribeConfigurationLeave.htm&data=01%7C01%7Csweet%40amnh.org%7C3ea2839c89b24ad7619f08d416f8b4e7%7Cbe0003e8c6b9496883aeb34586974b76%7C1&sdata=k5Hw9Uat7%2BN7ms2QLiZI7pgLwL9oqq6ye%2FfM9Rt%2BDto%3D&reserved=0> > *Archives:* > The Mail Archive > <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mail-archive.com%2Fnysbirds-l%40cornell.edu%2Fmaillist.html&data=01%7C01%7Csweet%40amnh.org%7C3ea2839c89b24ad7619f08d416f8b4e7%7Cbe0003e8c6b9496883aeb34586974b76%7C1&sdata=HSfVm%2BuhVB3ZMCrB6LnEKzdeBy2IO2qZDWn4ZECuF%2FY%3D&reserved=0> > Surfbirds > <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.surfbirds.com%2Fbirdingmail%2FGroup%2FNYSBirds-L&data=01%7C01%7Csweet%40amnh.org%7C3ea2839c89b24ad7619f08d416f8b4e7%7Cbe0003e8c6b9496883aeb34586974b76%7C1&sdata=pwktBFxTmuNEDZMlIXxIjx68OFDDu%2FoOPYjHYkCdXq4%3D&reserved=0> > BirdingOnThe.Net > <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbirdingonthe.net%2Fmailinglists%2FNYSB.html&data=01%7C01%7Csweet%40amnh.org%7C3ea2839c89b24ad7619f08d416f8b4e7%7Cbe0003e8c6b9496883aeb34586974b76%7C1&sdata=X05nMw6uXjtz5Ye%2F20QMrLpc6qNZf3Z%2B675bSocrtaM%3D&reserved=0> > *Please submit your observations to **eBird* > <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Febird.org%2Fcontent%2Febird%2F&data=01%7C01%7Csweet%40amnh.org%7C3ea2839c89b24ad7619f08d416f8b4e7%7Cbe0003e8c6b9496883aeb34586974b76%7C1&sdata=9IjllnYJYwaHLU32Tq2J9yAbjiti2m6wXgYrVdLEDio%3D&reserved=0> > *!* > -- > -- NYSbirds-L List Info: http://www.NortheastBirding.com/NYSbirdsWELCOME http://www.NortheastBirding.com/NYSbirdsRULES http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nysbirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L 3) http://birdingonthe.net/mailinglists/NYSB.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
