364 CHECK-LIST OF NORTH AMERICAN BIRDS. 



28. Phalacrocorax micropus (COPE). 



Graculus micropus COPE, Bull. U. S. Geol. Surv. Terr. IV. No. 2, 



1878, 386. 

 Phalacrocorax micropus COUES, Key N. A. Birds, 2d ed. 1884, 824. 



Pliocene of Oregon. 



ORDER ANSERES. 



29. Cygnus paloregonus COPE. 



Cygnus paloregonus COPE, Bull. U. S. Geol. Surv. Terr. IV. No. 2, 

 1878,388. 



Pliocene of Oregon. 



30. Branta hypsibates (COPE). 



Anser hypsibates COPE, Bull. U. S. Geol. Surv. Terr. IV. No. 2, 



1878, 387. 

 Branta hypsibates COUES, MS. 



ORDER PALUDICOL^. 



31. Grus haydeni MARSH. 



Grus haydeni MARSH, Am. Journ. Sci. XLIX. 1870, 214. 

 Pliocene of Nebraska. 



32. Grus proavus MARSH. 



Grus proavus MARSH, Am. Journ. Sci. IV. 1872, 261. 

 Post-pliocene of New Jersey. 



33. Aletornis nobilis MARSH. 



Aletornis nobilis MARSH, Am. Journ. Sci. IV. 1872, 256. 

 Eocene of Wyoming. 



