318 NORTHERN THREE-TOED WOODPECKER. 
taken for the second), is as short as the secondaries ; the five 
succeeding are subequal, the third and fourth being rather the 
longest. The tail is somewhat wedge-shaped, the outer fea- 
ther being half an inch shorter than the next, and one inch and 
ahalf shorter than the middle one. The tarsus isan inch and 
a quarter long, and black, as well as the toes and nails. 
The female is perfectly similar to the male, being but a 
trifle less in size, and quite as brilliant in plumage. 
Two years since it fell to our lot to describe and apply the 
name of ultramarine jay (Garrulus ultramarinus) to a species 
found in Mexico, closely resembling this, and to which Mr 
Swainson, in his “ Synopsis of Mexican Birds,” has lately given 
the name of Garrulus sordidus, his specimen being probably a 
young one. The principal distinctive characters may be found 
in its larger dimensions, but especially in the shape of its tail, 
which is perfectly even, and not in the least cuneiform, as it 
generally isin the jays, The back, though it is also somewhat 
intermixed with dusky, is much more blue than in our species, 
and indeed the whole azure colour is somewhat more brilliant 
and silky; the bluish collar is wanting, and the under wing, 
but especially the under tail coverts, are much less tinged with 
blue. ‘The wings, moreover, are proportionally larger. 
NORTHERN THREE-TOED WOODPECKER. 
(Picus tridactylus) 
PLATE XIV.—Fie. 2. 
Picus tridactylus, Zinn. Syst. i..p. 177, sp. 21.—Gme!. Syst. i. p. 439, sp. 21.— 
Scop. Ann. i. sp. 56.—Georgi, Reise, p. 165.—Borowsk, Nat. ii. p. 138. sp. 8.— 
Lath. Ind. p. 243, sp. 56.—Meyer and Wolf, Tasch. Deutsch. Vog. i. p. 125, 
sp. 8.—Temm. Man. Orn. i. p. 401, young.—Brehm, Lehr. Eur. Vog. i. p. 
142.— Ranz. Elem. Orn. ii. p. 184, sp. 9, tab. 7, fig. 4. —Picus hirsutus, Viel. 
Ois, Am. Sept. ii. p. 68, pl. 124, adult male.—Picoides, Lacepede.—Dendroco- 
pos tridactylus, Koch, Baierische Zool.—Tridactylia hirsuta, Stephens in 
Shaw’s Zool. ix. p. 219.—Picus tridactylus anomalus, Mus. Petr. 368.— 
Picchio a tredita, Stor. degli Ucc. ii. pl. 180.—Pic. tridactyle ou Picoide, 
Temm.l. c.—Dreizehiger Specht, Bechst. Nat. Deutschl. ii. p. 1044.—Naum- 

