FALCO NJ!:vius. 575 



cliamlicv, wliicli contained no nest wliatever, were found one eg-g- and tlie 

 remains of n frog', which had probaljl}- been carried to the female by her 

 attentive coinpanion. 



List of spccimcnii. 

 00, luL; Sacramento City, California, June 20, ISOT. 'K— 25"'— 7i_-i''_i i _i i 3 



315, ad; " near American Itiver, Sacramento County, California, Noveujber IS07 " 

 (Presented by :\Ir. O. C. Paiker.) ' ' 



4-'3, "9 «'?.; San Fraucisco, California, Jauuary 23, ISCS. 0;j— 245— (?)— 5i. Eyes, 

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



525, egg (1); Carson City, Nevada, April 25, 18GS. 



Family FALCONID.F.— Hawks, Eagles, Kites, etc. 

 Falco communis. 



Pores I'iaic Falcoti. 



/?. naviiis — American Peyc<jnne ; '■'Bark Ilan'L" 



Fairo iiirrlKs, Gmelin, Syst. Nat., I, 1783, 271 (adult). 



Falni aiKifioiu HoNAP., Coinp. & Geog. List, 1838, 4.— Cassin, Baird'.s B. N.Am., 



l,s,-,s, 7.-1UIRD, Cat. N. Am. B., 1859, No. 5.— Cooper, Orn. Cal., I, 457. 

 Falcit nimiiniiiiii var. anafuni, Ridgway, Pr. Bost. Soc. Nat. Hist., 1873,45; iu B. 



B. & K., Hist. N. Am. Birds, 111, 1874, 132.— Hensiiaw, 1875, 411. 

 Fulco communis, c. anatum, CoUES, Birds N.W., 1874, 341. 

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



(Baird), 1858, 8; ed. 18C0, pi. 11.— Baibd, Cat. N. Am. Birds, 1859, No. C— 



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



Falco communis, CoUES, Key, 1872,21.3, fig. 141 (not of Gmelin, 1788); Check 

 List, 1873, No. 343. 



The Duck Hawk was observed only at Pyramid Lake and along 

 the lower 2)ortion of the Truckee River. At the former locality a single 

 pair frequented the rocky eastern shoi-e and the adjacent clusters of pyra- 

 midal rocky islands. On the 23d of May, 1868, Avlien we visited the 

 Pyramid, we observed a male of this Falcon, in the blue plumage, fl\'ing 



