22 PACIFIC COAST AVIFAUNA [NO. 2. 



ing sites. Kaeding. — Very common; fresh eggs taken every week in May. 

 Cooper. — Nested in Santa Cruz Mountains, at 3000 feet, April 20, 1874.1 



138. Sialia arctica Swahts. Mountain Bluebird. 



Emerson. — Rarely seen. Observed once on the bare ridge-side at the 

 summit of Bear Creek canyon grade. 



139. Passer domesticus {Linn.). House Sparrow. 

 Common resident in all towns 



I. Proc. Nat. Mus., 1880, p. 245. 



