206 



THE CONDOR 



Vol. XX 



tree I found the female incubating and her mate in the thick foliage but a few 

 inches above the nest. Neither moved until I actually touched the bird on 

 the nest, which still contained but two eggs. The male left and 

 was not again seen, but the female remained close at hand, either in the nest 

 tree or one nearby, while I took the nest and eggs, and then collected her. The 

 nest was in the top of a white spruce, fifty-five feet above the surface of the 

 snow, which was fourteen feet deep on the level. The trunk of the tree was 

 not over three inches in diameter at the nest site. The eggs on blowing proved 

 to contain well developed embryos, probably one-half, and were doubtless part- 

 ly incubated on April 15. The ovaries of the female were very small. For 







^ "^ 







JOT > ^jfl 





7 Tm\ 



\r^ • ^^ 









' Wa 



W 1 



Ok Am 



1 











IBk. Jm 





L Jmmmt, 



B^. ^ • m\ 



Bmk. ' ' ; Jm 







^^k ^H 



gjRt Jmm 













WSs^y^ '~ ■ ' ^WH 





























B m\ 



■ -'OB ■ "\ 



m-.: '-' "M 











Wk. Mm 





mm 





HL*' <* 'j'/*djm\ 



WjL Jl 



fm 



HI 







12 3 4 



Fig. 43. Eggs of the Rocky Mountain Jay (sets nos. 1, 2 and 3) and, foe 



COMPARISON, ONE OF THE CANADA JAY ( SET NO. 4). 



about two weeks prior to collecting this set, it had been storming almost 



daily." 



NESTS 



No. 1. Outside measurements 7x9 inches, total depth 3% inches, base 

 and outside framework to within an inch of top, composed chiefly of pine and 

 other twigs. 



Nest proper, outside diameter, 5x5 % inches, walls about 1% inches thick, 

 cup diameter 3 inches, with depth 1% inches ; composed of fine grasses, cotton 

 strings of several sizes, and large amounts of unravelled rags and white rabbit 

 hairs; lined with same material and feathers. There are several pieces of cot 



