4. GECINUS. 53 



The Grey-headed Woodpecker, Penn. Arct. Zool ii. p. 277 (1785). 

 Picus canus, Gm. Si/st. Nat. i. p. 434 (1788), ex Edivards ; Licht. 

 Cat. Rev. Hcmib. p. 18 (1793) ; Temm. Man. cVOrn. i. p. 393 

 (1820) ; Brehm, Naturg. Eiir. Voy. i. p. 135 (1823) ; Roux, Orn. 

 Prov. i. p. 95, pi. lix. (1825) ; Valenc. Diet. Sc. Nat. xl. p. 169 

 (1820) ; Naum. Viig. Deutschl. v. p. 286, pi. 133 (1826) ; Risso, 

 Eur. Merid. iii. p. CO (1^26); Waql. Syst. Av. Picus, sp. 33 

 (1827) ; IFenier, Atlas, pi. 202 (1827) ; Less. Traite, i. p. 218 

 (1831); Menetr. Cat. Pais. Caiic. p. 46, no. 132 (1832); Gotdd, 

 B. Eur. iii. pi. 227, c? ? ad. (1837) ; Sckinz, Wirb. Sclnceiz, p. 92 

 (1837) ; Keys. Sf Bias. Wirb. Eur. p. 147 (1840) ; Schley. Rev. 

 Crit. Ois. d'Eur. p. xlix (1844); V. d. Miilile, Orn. Griechenl. 

 p. 30 (1844) ; Schleyel, Toy. Ncderl. p. 80, pi. 49, S 2 (1854-58) ; 

 Linderm. Voy. Grieckeid. p. 41 (1800) ; Brec, B. Eur. iii. p. 136 

 pi. cJ (1862); Sundev. Co7isp. Av. Picin, p. 61 (1866); Sahajiaeff, 

 Bull. Mosc. xlii. pt. 2, pp. 185-197 (1869) ; Ehv. 4' Buckl. Ibis, 

 1870, p. 188; David, Nouv. Arch, du Mus. 1871, Bull. vii. p. 4; 

 Mommsen, Griech. Jahresz. pt. iii. p. 186 (1875); Harv.-Broivn, 

 Proc. Nat. Hist. Soc. Glasg. 1877, p. 288 (ex Sabanaeff) ; Seeb. 

 Ibis, 1882, p. 209. 



Picus Dorvegicus, Lath. Ind. Orn. i. p. 236 (1790) ; Vieill. N. Diet. 

 xxvi. p. 99 (1818). 



Picus viridi-cauus, Meyer ^ Wtjlf, Taschcnb. Voyelk. i. p. 120 

 (1810). 



Picus chlorio, Pall. Zooyr. Rosso-Asiat. i. p. 408 (1811). 



Picus cauiceps. Nils. Orn. Suec. i. p. 105 (1817). 



Gecious canus, Boie, Isis, 1831, p. 542 ; Brehm, Voy. De^itschl. 

 p. 200 (1831); Gray, Gen. B. ii. p. 438 (1846); Bp. Consp. Gen. 

 Av. i. p. 126 (1850) ; id. Consp. Valuer. Zyyod. p. 10 (1854) ; 

 Reichenb. Scans. Picince, p. 348, no. 794, pi. dcxx. figs. 4135, 4136 

 (1854); Powys, Ibis, 1800, p. 235; Swinh. op. cit. 1861, p. 338; 

 Blakist. op. cit. 1862, p. 325 ; Sivinh.P. Z. S. 1862, p. 319; id. op. 

 cit. 1863, pp. 267, 333; Lilford, Ibis, 1866, p. 176; Whiteli/, op. 

 cit. 1867, p. 195 ; Deyl. 8,- Gerbe, Orn. Eur. i. p. 157 (1867) ; 

 Gray, List Picid. Brit. Mm. p. 74 (1868^ ; id. Hand-l. B. ii. 

 p. 191, no. 8677 (1870) ; Salvad. Faun, d'l'tal. Ucc. p. 35 (1871) ; 

 Saiind. Ibis, 1871, p. 65; Stvinh. P. Z. S. 1871, p. 392; Dubois, 

 Consp. Av. Eur. p. 19 (1871) ; Boyd. B. Volga,\x 60, no. 42 (1871) ; 

 Dress. B. Eur. \. p. 95, pi. cclxxxviii. (1872) ; Alst. ^- Harv.- 

 Broicn, Ibis, 1873, p. 59; Irby, Orn. Str. Gibr. p. 72 (1875); 

 Swinh. Ibis, 1875, p. 124 ; Danf. if Broivn, torn. cit. p. 298 ; Swinh. 

 torn. cit. p. 451 ; Blanf. Zool. E. Pers. ii. p. 136 (1876) ; Tacz. 

 Bull. Soc. Zool. Fratice, 1876, p. 239 ; Prjevalshy, B. Monyolia, in 

 Rowley's Orn. Misc. ii. p. 279 (1877) ; David .y Oust. Ois. Chine, 

 p. 51 ( 1877) ; Savnd. Bull. Soc. Zool. France, 1877, p. 325 ; Tacz. 

 op. cit. 1878, p. 139; Blakist. 8f Pryer, Ibis, 1878, p. 229; Boyd. 

 B. Cauc. p. 120 (1879) ; Goebel, Voy. Uman. Kr. p. 154, no. 140 

 (1879) ; Russow, Orn. Esth-, Liv- u. Kurl. p. 118 (1880) ; Brandt, 

 J.f. O. 1880, p. 229; Seeb. Ibis, 1880, p. 181; Giyl. op. cit. 1881, 

 p.' 191; Wharton, fo7n. cit. p. 257; Collett, Nory. Ftiylef. p. 314 

 (1881); Blakist. Sf Pryer, Trans. As. Soc. Jap. 1882, p. 136; Seeb. 

 Ibis, 1882, p. 373, 1883, p. 23 ; Radde, Orn. Cane. p. 307 (1884) ; 

 Giyl. Avif. Ital. p. 206 (1886) ; Salvad. Ucc. Ital. p. 67 (1887) ; 

 Hary. Ibis, 1888, p. 15 ; Tacz. P. Z. S. 1888, p. 406. 



Colaptes canus, I 



Colaptes viridicanus, j- Brehm, Isis, 1;>28, p. 1274. 



Colaptes caniceps, 



