420 



Thirteenth Supplement to the A. O. U. Check-List. 



TAu 

 LJuI 



inference, from negative evidence, that G. ardica does not 

 occur in North America is erroneous, and there is hence no 

 necessity for eliminating No. 9 from the Check-List. 



Aythya vs. Nyroca {cf. Howe, Suppl. Birds Rhode 

 Island, 1903, 9). No change is necessary here; the 

 reasons offered for the proposed change are insufficient. 

 (Cf. nth Suppl., Auk, XIX, 1902, 332.) 



224. Steganopus tricolor Vieillot vs. S.glacialis {cf. Coues, 

 Key, 1903, 795). No change is thought to be advisable, as 

 the name glacialis is of doubtful application. 



Genus FHILOHELA Gray vs. Microptera {cf Poche, Ornith. 

 Monatsb., 1904, 23). Microptera of Nuttall (1834) is pre- 

 occupied by Micropterus Lesson (1831), leaving Philohela as 

 the earliest available generic name for the American Wood- 

 cock. 



810. Meleagris gallopavo merriami Nelson vs. M. g. 

 internu'dia {cf. Grant, Ibis, 1902, 235). The Committee 

 has again examined series of Turkeys from Texas, Arizona, 

 and Mexico, and finds no reason for reversing its former 

 decision. 



318. Leptotila fulviventris brachyptera (Salvadori) vs. 

 L. brachyptera {cf Godman, Biologia Centr.-Am., Aves, III, 

 1902, 259). The two forms are found to intergrade, and 

 no change is required. 



328. Elanus leucurus (Vieillot) vs. E. glaucus (Barton) {cf. 

 Coues, Key, 1903, 656). No changes is necessary, as Falco 

 glaucus Barton probably refers to the Marsh Hawk, but is 

 not with certainty identifiable. {Cf 9th Suppl., Auk, XIX, 

 1899, 131.) 



407a. Melanerpes formicivorus angustifrons Baird vs. 

 M. angustifrons {cf Brewster, Bull. Mus. Comp. Zoo!., XLI, 



