272 List of Birds found 4 , Cumberland County, Penn. 
179. Aix sponsa, Linn.,t Summer Duck. 1840, March 4; 1841, 
March 30; 1842, March 17; 1 een 6. Very common; rare in 
winter 
180. Aythya erythrocephala, Bon., - Rei-headed Duck. Very rare; 
migratory. 
181. Fuligula marila, Linn., (small var. 7... headed Duck. 1841, 
April 19; 1842, March 17; 1843, April i. Abundant ; migratory. 
182. Fuligula rafliorgnes; Bon., -necked Duck. 1843, March 
Not common ; migratory. Ee 
183. Clangula Asetacank: Bon. +» Gol 
winter; migratory. —— 
184. cee bg Linn I B 
spring and a winter 
185. Harelde'g clacialis, Lim U 
ed Duck. gee in 
sath felcheaded Duck. Abundang in 
13 Sc th Southerly. Very rare ; migra 
tory. 
186. Erismatura rubida, Wils. , Ruddy Duck. 1841, April 17. Rather 
rare; migratory. 
187. Merganser Castor, a Goosander. Abundant; breeds in se 
adjoining county of 
188. Merganser Semcavsr, Linn., Red-breasted- Merganser. Very 
rare ; migratory 
189. Morgglieer cucullatus, Linn., Hooded Merganser. 1840, April 
15; 1842, April 27; 1843, April 11. Abundant; breeds in Perry 
Connie? 
190. Hydrochelidon nigrum, Linn., Black Tern. Seen once in au- 
tumn ; migratory. 
191. Xema Bonapartii, Rich., Bonaparte’s Gull. Rare; migratory. 
192. Sylbeocyclus Carolinensis, Lath.,+ Carolina Grebe. 1840, 
April 2; 1841, April 1; 1842, March 28; 1843, April 11. Abun- 
dant; migratory. 
193. Podiceps cornutus, Lath., Horned Grebe. Rare; migratory. 
194. Colymbus glacialis, Linn., Loon. 1841, April 13 ; 1842, May 
23. Common; migratory. 
Besides the above, found in the immediate vicinity of Carlisle, 
the following have been seen in the eastern border of Cumberland 
County, on the Susquehanna River. 
195. Squatarola Helvetica, Linn. 
196. Limosa fedoa, Vieill. 
197. Cygnus Americanus, Sharp. 
198. Oidemia fusca, Linn. 
199. Aythya Vallisneria, Wils. 
200. Falco peregrinus, Linn. 
201. Larus, (a large species.) 
