FALCO N^VIUS. 575 



chamber, wliicli contained no nest whatever, were found one eg^,' and tlie 

 remains of a frog, which had probably been carried to the female by her 

 attentive companion. 



List of sj)ccimcnii. 

 00, «(/.,• Sacraiiieuto City, Calirornia, June 20, lS(i7. !).! — 2o'' — 7i— ."»!; ' ' 1 ' ■' 



31.'), (((].; " near AiiuMican RiviT, Sacraraeuto County, California, November, 1807." 

 (Presented by Jlr. II. Ci. I'aiker.) 



423, "9 orf.; Sau Francisco, Ciilifornia, January 23, 18C8. Ojl— 24§— (?)— 5^. Eye.s, 

 bright yellow." (Presented by Mr. Parker.) 



525, egg (I); Carson City, Nevada, April 2.1, 18GS. 



Family FALCONID^ — Hawks, Eagles, Kites, etc 



FaLCO COMMUNIS. 

 Peregrine Falcon. 



/?. naviu.s — American Peregrine; "Duck JIawJcy 



Fulco na't-ius, Gmelin, Syst. Nat., I, 17S8, 271 (adult). 



Falco anatiiw, BoNAP., Conip. & Geog. List, 1838, 4. — Cassix, Bainl's B. N. Am., 

 185S, 7.— Baird, Cat. N. Am. B., 1859, No. 5. — Cooper, Orn. Cal., I, 457. 



Falco communis var. anatum, RiDCiWAY, Pr. Bost. Soc. Nat. Hist., 1S7.'!, 45; in B, 

 B. & K., Uist. N. Am. Birds, HI, 1874, 132.— Ue.nsuaw, 1875, 411. 



Falco communis, c. anatum, COUES, Birds N.W., 1874, 341. 



Falco nigriceps, Cassin, lllnst. Birds of Cal., Tex., &c., 1854, 87; Birds N. Am. 

 (Baird), 1858, 8; ed. 1800, pi. 11.— Baird, Cat. N. Am. Birds, 1859, No. 0.— 

 Cooper, Orn. Cal., I, 1870, 450. 



Falco communis, Coues, Key, 1872,213, fig. 141 (not of Gmelin, 1788); Cbeck 

 List, 1873, No. 343. 



The Duck Hawk was ob.served only at Pyramid Lake and along 

 the lower portion of the Truckee River. At the former locality a single 

 ])air frequented the rocky eastern shore and the adjacent clusters of pyra- 

 midal rocky islands. On the 23d of May, 18G8, when we visited the 

 Pyramid, we observed a male of this Falcon, in the blue ))Uunage, flying 



