776 BULLETIN UNITED STATES GEOLOGICAL SUEVEY. [YoLY. 



1870. Wood, W. Falconry. <JLm. 2Vai., iv, 1870, pp. 74-82. 

 A short popular sketcli of the subject, chiefly historical. 



1870. Woodman, W. The Nesting of the Fish Hawk [Fandion carolinensis. ] <^Am. 



Nat., iv, 1870, pp. 559, 560. 

 Criticism of E. A. Samuels's statement. 



1871. Abbott, C. C. The Nest of the Pigeon Hawk [Falco columbarius. ] <CAm. 



Nat. , Y, 1871, pp. 248-250. 

 Eef. to T. M. Brewer, torn, cit, p. 56, and "W. A. Steams, op. cit., iv, p. 439. 

 1871. AXLEN, J. A. The Migration of Hawks, < Am. Nat., y, 1871, p. 173. 



Confirms W. "Wood's observations (op. cit, iv, pp. 759, 760). 

 1871. Botes, F. Marsh Harrier [Circus seruginosus] in East Yorkshire. <^ Zoologist, 



2dser., vi, 1871, p. 2847. 

 1871. BOYES, F. Ospreys [Pandion haliaetus] in East Yorkshire. <^ Zoologist, •2d 

 ser., vi, 1871, p. 2847. 



1871. Brewer, T. M. The [''jPigeon Hawk["]. < Am. Nat., y, 1871, pp. 56, 57. 

 Corrects misstatement of W. Steams, op. cif.,iv, p. 439. 



1871. Brooke, A. B. Graylag Goose and American Goshawk [Astur atricapillus, in 

 Ireland]. <^Zoologist, 2d ser., vi, 1871, pp. 2524, 2525. 



1871. Carey, C. B. Whitetailed Eagle [Haliaetus albicilla] in Alderney. <[ Zoolo- 

 gist, 2d ser. , vi, 1871, p. 2866. 



1871. GUNN, T. E. Eoughlegged Buzzard [Archibuteo lagopus] near Yarmouth. 



< Zoologist, 2d ser., vi, 1871, p. 2847. 



1871. Hadfield H. [On the characters of the European and American] Eoughlegged 



Buzzard. < Zoologist, 2d ser., vi, 1871, pp. 2764, 2765. 

 1871. Homeyer, E. F. vok. Monographische Beitrage. I. Genuaja und Falco Kaup. 



< J. f. 0., xix, 1871, pp. 39-56. 



Commentary on what the writer considers the established species : FF. tanypterus, cervi- 

 calis, jugger; peregrinus, minor, calidug, peregrinator, onelanogenys, peregrinoides. 



1871. Jarvis, W. The Duck Hawk [Falco communis, breeding in White Mountains 



of New Hampshire]. <[ Am. Nat, v, 1871, p. 662. 

 1871. Newton, A. On certain species of Falconidse, Tetraonidse, and Anatidse. 



< Froc. Acad. Nat. Sci. Fhila., 1871, pp. 94-100. 



Discussing the Great Northern Falcon question, and recognizing three species — Falco can- 

 dicans, islandicus, gyrfalco, the comparative diagnoses of which are given. 



1871. Eeeks, H. [Distinction of American and European] Eoughlegged Buzzard. 



■^Zoologist, 2d ser., vi, 1871, p. 2726. 

 1871. EODD, E. H. Marsh Harrier [Circus seruginosus] at St. Mary's, Scilly. <^Zoolo- 



gist, 2d ser., vi, 1871, p. 2847. 



1871. Saunders, H. [Exhibition of, and Eemarks upon, a series of Birds of the 



genus Aquila. ] < P. Z. *5. , xxxvix, 1871, pp. 37-39. 

 1871. Smith, C. Marsh Harrier [Circus seruginosus] in Somersetshire. <; Zoologist, 



2d ser., vi, 1871, pp. 2866, 2867. 

 1871. Stearns, W. A. The Pigeon Hawk, Correction [of misstatement made by 



Avriter, op. cit., iv, p. 439, the species being F, sparverius, not F. columba- 



rius]. < Am. Nat. , v, 1871, p. 253. 



1871, Wood, W. The Game Falcons of New England. <^Am. Nat.,Y, 1871, pp. 80-87. 

 Relates chiefly to Falco communis — biographical, descriptive, etc. 



1871, Wood, W. Migration of Hawks. < Am. Nat.,\Y, 1871, pp. 759, 760. 



Note on the large flights occasionally observed. 



1872, Buckley, H. On some new or rare Birds' Eggs. < P. Z. a^.. May 7, 1872, pp. 



625, 626. 

 Falco polyagrus, Flanoides furcatus, Ictinia inississippiensis. 

 1872. Cabanis, J. [Gruppe der Wiirgfalken, Pnigohierax (n. g.) laniarius, jugger, 

 und mexicanus.] <^ J.f. 0. , xx, 1872, pp. 156, 157. 



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