th( Condor 
A MAGAZINE OF WESTERN ORNITHOLOGY 
Bi-Monthly Bulletin of the Cooper Ornithological Club 
Vol. 4. No. 4. Santa Clara, Cal., July-August, 1902. $ 1 .00 a Year 
Incubation Advanced. 
BY C.ORYl)ON CIIAMBERBIN. 
44 T NCUBATION advanced” is what 
I I should have said instead of what 
I did say. I had watched that male 
Hutton vireo for over two hours and fi- 
nally “sleuthed” him to a small pine tree 
where I discerned a nest in the outer 
had climbed the tree and got out on the 
end of the very^ slender limbs I found 
the nest as per illustration. This all 
occurred about April 15, 1897 near the 
Jumper Mine in Calaveras county, Cal. 
The nest was composed of moss woven 
foliage. It was about twenty feet above 
the ground and fairly well concealed 
among the pine needles. I could see 
the tail of a bird on the nest. “Patience 
and perseverance at last rewarded” says 
I, “She’s setting. I can see her tail 
over the side — pretty nest too.” When I 
together with fine grass and hair. A 
few lichens adorned its outside. The 
young were nearly full grown, two slept 
peacefully, but the third and probably 
the eldest was quite on the alert while 
I made a hasty sketch. 
