Drew on Birds of San fuan County , Colorado . 
side of the other, I found two of the Violet Green’s nests. No. i had 
built her nest on a level with the lower opening. No. 2 had filled the 
space over the first one’s head with twigs, and was just finishing her own 
nest when I came on the scene. In the lower nest I found four fresh, 
white eggs. Just before a rain storm they love to huddle together on dead 
trees, like Cedarbirds, when numbers can be killed at a single shot. They 
leave early in autumn. 
23. Ampelis garrulus, Linn. Bohemian Waxwing. — Small flocks seen 
in November. 
24. Vireo gilvus swainsoni, Cones . Western Warbling Vireo. — 
Found, but apparently rare. 
I saw several other Vireos which I could not secure. I think I saw and 
heard, V. solitarius plumbeus; it is very common at 8,000 feet, and. so 
far as I could judge from a number of specimens, is only a variety of 
solitarius. 
25. Lanius borealis, Vie ill. Great Northern Shrike. — Rare ; a 
fall and winter visitant. Lives by foraging on the little troops of Tit- 
mice. 
26. Lanius ludovicianus excubitoroides, Cones. White-rumped 
Shrike. — Not common; breeds? 
Some ornithologists discredit the “ hovering,” and singing of this Shrike. 
In southern Illinois, where they are numerous and resident, I have seen 
one hover over a mouse’s nest for a few minutes, then dart down and seize 
a new-born mouse which went to adorn a hedge near by. Soon he was 
back again, hovering as before, but this time a Meadow Lark so bothered 
him that he left. When hovering he was at times twenty feet high, and 
again, just above the weed-tops. 
He has quite a variety of notes : some resemble a Blue Jay’s, others the 
whistle of a Cardinal Grosbeak, while others are quite original, and not 
unmusical. I have also heard them sing here, but in either place, they 
only sing during the winter, from October to March. 
A Shrike I shot here in April, 1880, is typical ludovicianus , excepting 
that the bill is black, and the wing, instead of being black, is of a ruddy 
brown color. 
27. Pinicola enucleator. Cab. Pine Grosbeak. — Rather common 
in late summer, and through the winter. I think they breed, as I found 
them the first week in August. A sweet warbler. At one of our camps 
in the Animas Canon I often heard them singing at daybreak. During 
severe storms in winter they come down into the willow bushes along the 
streams. 
28. Carpodacus cassini, Baird. Cassin’s Purple Finch. — Not 
common. Of the several I have taken all have been males. In June they 
have a Vireo-like warble; strong, clear and sweet. Not seen after Novem- 
ber 1. 
29. Loxia leucoptera, Gm. White-winged Crossbill. — Rare. One, 
from Baker’s Park, in the collection of Dr. R. H. Brown of Silverton. 
30. Leucosticte tephrocotis, — var. australis of Allen. I am some- 
