S. F. Baird on North American Birds. 85 
indefatigable researches of Mr. Xantus," there are at least twenty 
species found at Cape St. Lucas not known elsewhere. 
rom all these considerations we are legitimately entitled to 
claim Lower California, or at least its southern extremity, as 
belonging to temperate North America, even more positively 
than Florida itself. : : 
-eculiarities in regard to the size of Cape St. Lucas birds will 
hereafter be referred to, : 
. +Here is of course an Arctic province which melts gradually 
into those great provinces mentioned, and along the mountainous 
Tanges extending far southward, in fact almost into Mexico, as 
shown by the occurrence in summer at Cantonment Burgwyn, 
Stande, and of those of the eastern province westward along 
the Missouri and along the Canadian, etc., but they do not affect 
Atlantic states, 
, See Xantus, Pr. A. N. S., Nov. 1859 ge 
* Tam informed by Dr. Cabot that a third specimen has recently (Dee. 1864) 
been sh : al HL isty. As it has 
ear ated. to the Hasarel ¥ : Society, son 
Fa coast in company with some of our eastern species bred in the Mackenzie 
River valley and returning sont to lanti i 
