Cataloque of Birds found in Europe and America, 
STRIGIDEZ 
America. 
It is darker than the European bird, the 
dark lines being also broader. (Baird, 
Brewer, and Ridgway.) 
Surnia ulula. 
It was observed by Mr. Turner at St. 
Michael’s, Alaska. (Ridgway, Bull. 
Nutt. Orn. Club, January, 1878, 
p- 38.) 
Surnia ulula var. hudsonica.* (Gm.) Ridg- 
way. (American Hawk Owl.) 
Arctic America; southward in Winter to 
the Northern United States. (Baird, 
Brewer, and Ridgway.) 
Glaucidium passerinum var. gnoma.* Ridg- 
way. 
Western North America from Puget’s 
sound to Arizona. Colorado (C. FE. 
Aiken). Vancouver’s Island (Sharpe). 
Table lands of Mexico (Lawrence). 
Guatemala (Sharpe). 
“T find it to differ from its European 
analogue in just the same respects that 
Surnia hudsonica,” &c., “‘ do from their 
old world representatives S. Ulula,” 
&e., “ viz., in darker shade and greater 
area of the dark tints.” (Ridgway, 
Ibis, 1876.) ' 
385 
continued. 
Europe. 
in the year, but does not breed there 
at liberty. (Newton’s Yarrell.) 
Siberia and south, even to the mountains 
of Afganistan. (H. O. Hume.) 
The toes are much more thickly feathered 
than in the American bird. (R. B. 
Sharpe. ) 
Surnia ulula.* Gray. (Hawk Owl.) 
Found in Norway, Sweden, Lapland, 
and Finmark (F. and P. Godman) ; 
North Germany (Borggreve). Rarer 
south. 
Migratory in Central Russia. (Sabanaéff.) 
Migrates southward in winter, but not as 
far as the Mediterranean. The Hawk 
Owl taken in Shetland, may, possibly 
have been of this species. (Dresser. ) 
Surnia ulula var. hudsonica. 
It has been taken off the coast of Corn- 
wall. (Thompson.) 
At Yatton, Summersetshire. (Higgins.) 
At Maryhill, Glasgow. (Gray.) 
At Greenock. (Gray.) 
The Hawk Owl taken in Shetland may 
have been of this species or S. Ulula. 
In Europe it has been found nowhere 
but in Britain. (Dresser.) 
Glaucidium passerinum.* (1.) Boie. (Spar- 
row Owl.) 
Northern Palearctic region from Norway 
to Siberia. Rarer in Germany; has 
been taken in the mountains of Silesia, 
Bohemia, Austria, and Styria. 
(Dresser. ) 
It has the toes more thickly feathered 
than the American form; and the tail 
bands fewer and more continuous. 
(Ridgway, Ibis, 1876.) 
FALCONID®. 
Falco gyrfalco.* Linn. 
Continental Arctic America. 
The American bird has been separated as 
Var. sacer, but Mr. Dresser says that, 
after comparing a large series, he can 
find no sufficient difference in them to 
uphold the variety. 
Falco gyrfalco var. candicans.* Gm. 
(Greenland Falcon.) 
Greenland, straggling into North Eastern 
America. 
Falco gyrfalco var. islandus. 
Sometimes westward from Iceland into 
North Eastern America. 
ScrEN. Proc., R.D.S. Vou. 11., Pt, v. 
Falea gyxfaleo.* Linn. (Jerfalcon.) 
Northern Scandinavia, Northern Russia, 
and all Northern Asia. 
Falco gyrfalco var. candicans. 
It sometimes comes eastward from 
Greenland into Northern Europe. 
Falco gyrfalco var. islandus.* Gm. (Ice- 
land Falcon.) 
Iceland, and North Western Europe. 
2D 
