390 
BLUE HAWK, OR HEN-HARRIER. 
BLUE HAWK, OR HEN-HARRIER FALCO CYANEUS. 
Plate XIL 
WilsorCs American Ornithology, vol. vi. p. 67, pi. 51, fig. 1, for the young, (under 
the name of Marsh Hawk, Falco uliginosus.) — Falco cyaneus, Linn. Syst. i. p. 
126, sp. 10. Gmel, Syst. i. p. 276, sp. 10. Iter Poseg. p. 27, adolescent male. 
Lath.-Ind. Orn. i. p. 39, sp. 94. Montague, in Trans. Lin. Soc. ix. p. 182. 
Meyer, Tasch. Deutschl. Vog. i. p. 145. Temm. Man. Orn. i. p. 72. Ranz. 
El. Zool. iii. pi. 7, p. 137, sp. 28. Brehm. Lehrh. Eur. Vog. i. p. 59. 
Selby, III. Br. Orn. i. p. 26, pi. 10, fig. 1, male ; fig. 2, female. Savi. Orn. 
Tose. i. p. 63. Nob. Cat. and Syn. Birds U. S, sp. 22 Falco pygar- 
gus, Linn. Syst. i. p. 126, sp. 11. Gmel. Syst. i. p. 277, sp. 11, female and 
young. — Falco Hudsonius, Linn. Syst. i. p. 128, sp. 19. Gmel. Syst. i. p. 277, 
sp. 19, young, American. — Falco Bohemicus, Gmel. Syst. i. p. 276, sp. 107. 
Lath. Ind. p. 38, sp. 93, adult male. — Falco albicans, Gmel. Syst. i. p. 276, sp. 
102. Lath. Ind. p. 38, sp. 93, adult male. — Falco griseus, Gmel. Syst. i. p. 
275, sp. 100. Lath. Ind. p. 37, sp. 86. Gerard. Tabl. Elem. p. 37, adoles- 
cent male. — Falco montanus, var. B. Gmel. Syst. i. p. 278, sp. 106. Lath. Ind. 
p. 48, sp. 116. — Falco cinereus, It. Poseg. p. 27, adolescent male. — Falco albi- 
coUis, Lath. Ind. p. 36, sp. 81, adult South American male. — Falco Buffonii, 
Gmel. Syst. i. p. 277, sp. 103, female and yoimg, American. — Falco uliginosus, 
Gmel. Syst. i. p. 278. Lath. Ind. p. 40, sp. 95. Sabine, Zool. App. to 
Frankl. Exp. p. 671, young American. — Falco rubiginosus, It. Poseg. p. 29. 
Lath. Ind. p. 27, sp. 56, young. — Falco ranivorus, Daudin, Orn. ii. p. 170. 
Lath. Ind. Suppl. p. 7, young. — Falco europoglstus. Baud. Orn. ii. p. 110, ado- 
lescent male. — Circus europogistus, Vieillot, Ois. Am. Sept. i. p. 36, pL 8, ado- 
lescent male Circus Hudsonius, Vieill. 1. c. i. p. 36, pi. 9, young. — Circus uli- 
ginosus, Vieill. 1. e. i. p. 37, female and young Circus variegatus, Vieill. I, c. 
i. p. 37, male changing. — Circus gallinarius, Vieill. Nouv. Bict. d'Hist. Nat. iv. 
p. 459. — Circus cyaneus, Id. xxxi. p. 410. — Circus cyaneus, J5o^e. — Circus rani- 
vorus, Vieill. Nouv. Bict. d'Hist. Nat. iv. p. 456, young African. — Falco strigi- 
ceps, Nills. Orn. Suec. i. p. 21. — Falco torquatus, ^ms. Orn. i. 345, sp. 7. Id. 
8vo, p. 100, male and female, Brunn. sp. 14. — Falco montanus cinereus, Briss. 
Orn. i. p. 355, sp. 9, var. A. Id. 8vo, p. 112, adolescent male.-— Accipiter 
Freti Hudsonis, Briss. Orn. vi. App. p. 18, sp. 47. — Lanarius cinereus, JBriss. 
Orn. i. p. 365, sp. 17. Id. 8vo, p. 106. — Lanarius albicans, Briss. i. p. 367, 
sp. 18. — Subbuteo, Gessner, Av. p. 48. — Pygargus accipiter, Ray, Syn. p. 17, 
sp. 5. Will. Orn. p. 40, pi. 7. — Falco plumbeus, cauda tesselata, Klein, Av. p. 
52, sp. 22. — Lanarius, Aldr. Orn. i. pi. 381, 382, adult male. — Lanarius cine- 
reus, sive Falco cinereo-albus, Frisch, pi. 79, 80, adult male. — Falco montanus 
secundus, Aldr. Will. pi. 9, adult male. — Albanella, Storia degli Ucc. i. pi. 35, 
adult male. — Falco Pygargo, Id. i. pi. 31, female. — Autre Oiseau St Martin, 
