PLATE 46 



Huiniiiiiigliii'ls which iiost in the Vosemite region (Ke text, ])p. 3.')2, ;?.").S, :!")<)) ; 

 all aV)or,t %,, natural size. 



It. Calliope Hummingbird, male adult; Yoi-emite A'alley, June 8, 1915. 

 h. Anna Hummingbird, female adult; Pleasant Valley, May 23, lOlo. 

 V. Black chinned Hummingbird, male adult; El Portal, May 2, 1916. 



Swallows an<l White-throated Swift compared (see text, p. 3.")1) ; 

 all aV)out V_> natural size. 



d. Cliff Swallow; Pleasant Valley, May 27, 1915. 



e. Barn Swallow; Pleasant A'alley, May 24, 1915. 



f. Northern Violet -green Swallow; Pleasant Valley, May 24, 1915. 

 //. Whit(> throated Swift; Yosemite Point, June 25, 1915. 



