274 University of California Publications in Zoology [^ol. 24 



The nest contained six eggs, which proved to be almost fresh; incubation 

 less than one day 



The nest measured 6% inches in outside diameter, and 2% inside; depth 

 (outside) 3 inches, (inside) 1% inches; composed externally of small, short, 

 dead pine twigs loosely arranged and partially covered with pale green moss, 

 and small bunches of white cottony vegetable fibres. The nest lining consisted 

 of a few fine grasses, a few bunches of fine wooly black moss, and bunches of 

 the soft white cotton. 



The tree containing the nest was at least twenty feet from any other tree 

 and had no limbs for at least twenty feet from the ground. The nest was placed 

 close to the body of the tree and supported by two small nearly horizontal limbs 

 and a few lateral supporting twigs from these (B. M. Anderson, 1909, pp. 11-12). 



rig. EE. Map showing the known breeding range of the Bohemian wax- 

 wing in North America. Circles indicate points where the species has been 

 found nesting. 1. Fort Yukon, Alaska, July 4, 1861 (Baird, 1866, p. 406). 2. 

 Fort Anderson (Baird, loc. cit.). 3. 158-Mile House, Cariboo District, British 

 Columbia, June, 1901 (Brooks, 1903, p. 283). 4. Fort Smith, Albftrta, June 10, 

 1908 (E. M. Anderson, 1909, pp. 11-12). 5. Atlin Lake, British Columbia, July, 

 1914 (E. M. Anderson, 19156, pp. 145-148). 6. Telegraph Creek, British Colum- 

 bia, June and July, 1919 (Swarth and Dixon, MS). 



