. Review of American birds in the Museum of the Smithsonian Instution. [microform]. Birds; Oiseaux. HELMr THOPIIAQA. 177 Specimens from the Youkon seem to show traces of hybriility with perenrina, one skin cspeeially (2?,326) in which tlie checks mid foreiiead are as pure gray as in perecjrina, while all the other char- iicters are those of celata. This same apparent tendency to iiybrid- isni ill Youkon specimens is seen in other species, as between Junvo hyemalia and oregonu», etc., and may be explained by the fact of tliis region being in the boundary line of the breeding grounds of these c
. Review of American birds in the Museum of the Smithsonian Instution. [microform]. Birds; Oiseaux. HELMr THOPIIAQA. 177 Specimens from the Youkon seem to show traces of hybriility with perenrina, one skin cspeeially (2?,326) in which tlie checks mid foreiiead are as pure gray as in perecjrina, while all the other char- iicters are those of celata. This same apparent tendency to iiybrid- isni ill Youkon specimens is seen in other species, as between Junvo hyemalia and oregonu», etc., and may be explained by the fact of tliis region being in the boundary line of the breeding grounds of these closely allied representative species. A specimen of celata, from Georgia, shows no trace of orange in the crown, and is much darker in color, and with larger bill than in western ones. Mr. Audubon speaks of the K celata as being common and gener- ally distributed through the Eastern States, and breedinii;- abundantly in Maine, New Brunswick, etc. I have myself never seen or heard jf any specimens from east of the Mississippi Valley, excepting a few taken in Georgia and Florida, and near Philadelphia, and these may belong to a different species. The Institution possesses one specimen from Dane Co., Wisconsin. Specimens are in the collection from many localities in the Pacific region of the United States up to the northern boundary, and east to the Rocky Mts. 1 Smith- Collec- Sex When Collected. aiinlaa tor's No. I No. and Age. Locality, Received from Collected by 27,221 1,211 Ft. Youkon. June 10,'61. R. Keunicott. R. Kunnicott. 27 32-^ 0 'âââil June ,'61. t( hM m 6 Ft. Pesotnnon. May 22, 'CO. K 27,228 1,301 9 Dane Couuty, WIh. GeorKia. [Lucas. ... B. R. RosR. B. R. Ross. 7,92.) , , Y ... Th. Kuralien. 12,)2 ., J. Arklinrst. 20,442 3,408 San .lose, Cape St. Nov. 23, '89. J. Xantus. J. Xantus, 32,706 40,774 V Mexico. ... Verreaux. (27,32,'i.) WitheKgs. (12,852.) This and the last the only specimeus in the collection from (ast of the MUbourl River. Helminthophaga T
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
