776 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [YolY. 



1870. Wood, W. Falconry. < >4ni. .Y«f., iv, 1870, pp. 74-82. 

 A short popular sketch of the subject, chiefly historical. 



1870. WooDMAX, W. The Nesting of the Fish Hawk [Pandion carolinensis.] <.4m. 



Xat, iv, 1870, pp. 5.59, .560. 

 Criticism of E. A. Samuels's statement. 



1871. Abbott, C. C. The Nest of the Pigeon Hawk [Falco coliimbarins. ] <^Am. 



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

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



1871. Allen, J. A. The Migration of Hawks. < Am. Xat., \, 1871, p. 173. 

 Confirms "W. Wood's observations {op. eit., 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 ["]Pigeon'Hawk["]. < Jm.JNa^, v, 1871,pp.56,57. 

 Corrects misstatement of W. Steams, op. cit, 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, 1<671, j). 2866. 



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

 <^ Zoologist, 2(i 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. VON. Mouographische Beitrage. I. Gennaja und Faleo Kaup. 



< ./. /. 0., xix, 1871, pp. 39-56. 



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

 calii. jugger; peregrinus, minor, calidns, peregrinator, melanogenyg, peregrinoides. 



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



of New Hampshire]. <^ Am. Xat., v, 1871, p. 662. 

 1871, Newton, A. On certain species of Falconidae, Tetraonidae, and Auatidse. 



< Proc. Acad. Xat. Sci. Phila., 1871, pp. 94-100. 



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

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



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

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



1871. RoDD, E. H. Marsh Harrier [Circus aeruginosus] at St. Mary's, Scilly. <[ Zoolo- 

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



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



genus Aquila. ] <^P.Z.S., 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]. <^^ni. X«^, V, 1871,p. 253. 



1871. W00D,W. The Game Falcons of New England. <^m, JVa*., v, 1871, pp. 80-87. 

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



1871. Wood, W. Migration of Hawks. < Am. Xat. , iv, 1871, pp. 759, 760. 



Note on the large flights occasionally observed. 



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



625, 626. 

 Falco polyagrus, Elanoides furcatus, Ictinia migsismppiensls. 

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

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



