ACADEMY OF SCIENCES. 7 



Megaptem, (=Rorqualus No. 31 ?) ; Lugcnor/iijnchm, Bottle-nosed Por- 

 poise or Whale ; Delphinapterus, aud Beluga or White Whale — the last proba- 

 bly only an Arctic species. 



Class BIRDS. Order Scansores. 



38 CoccYGDS Americanus Linn. (Vieill.) — Tellow-billed Cuckoo. Ob- 

 tained in Sonoma or Napa County by Mr. F. Gruber, and observed by me to be 

 quite abundant in summer, at Sacramento. Mentioned by Nuttall, Newberry 

 and others, but I believe, never before collected on this coast. 



39* PicoiDES ARCTious Swainson, (Gray) — Arctic Three-toed Woodpecker. 

 I found this species common near Lake Taho and the summits of tlie Sierra. 



Order Raptores. 



40 AsTUR atricapillus Wilson, (Bonap.) — Goshawk — Collected at Michi- 

 gan Bluffs, Placer County, by Mr. Gruber in summer, and seen by me on the 

 Sierra Nevada. 



41* BuTEO zoNOCERCUS Sclatcr — Contraband Hawk — See Proc. Zool. Soc, 

 London, 1858, p. 263— Coues, in Proc. Philad. Acad. Nat. Sc, Jan., 1866. 

 Obtained by me at San Diego, Cal., in March, 1862 ; the first found in the 

 United States ; Arizona, Cones ; Mexico, Scloter. 



f Athene Whitneiji Cooper, Proc. Cal. Acad., II, 118, 1861, has been made 

 the type of a new genus Micrathene by Coues, 1. c. supra. A second speci- 

 men marked, " Mexico," is in Mr. Woodward's Museum in this city. 



Order Strisores. 



42 Callothorax Calliope Gould — Calliope Humming-bird— Obtained at 

 Fort Tejon by J. Xantus, (Baird in lit.)— See Proc. Acad. Nat. Sc, Philad., 

 1859. 



43* Selaspiiorus platycercus Swainson, (Gould) — Broad-tailed Humming- 

 bird — I obtained a female specimen at Lake Tahoe, this making the sixth Cal- 

 ifornian species of Humming-bird. 



Order Passeres. 



Empiclonax Traillii Aud. (Baird) — Traill's Flycatcher — See vol II, p. 122. 

 As the existence of this species ijvest of the Rocky Mountains has been 

 doubted by Prof. Baird and Dr. Coues, (Proc. Philad. Acad., Jan., 1868) I 

 made a new comparison of my male specimen with the description, aud found 

 it to agree in every detail, except in having the primaries only half an inch 

 (0.50) longer than the secondaries, instead of 0.70, and the tail 0.10 inch 

 shorter, the bird being however smaller than Prof. Baird's Pennsylvania speci- 

 men. The color is probably a little more gray than in Eastern birds, as in all 

 the species of Colorado Valley. It differs from E. pusillus, as described by 

 Baird, in all the essential points, and is in excellent spring plumage. The lower 

 maudible was yellowish instead of " dusky flesh color," the feet brownish, not 

 black as in the E. pusillus of Coues. 



44* Regulus Satrapa Lichtenstein — Golden Crowned Wren. — Found by 

 me near the summit of Johnson's Pass, Sierra Nevada. 



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