140 GENERA AND SPECIES OF BIRDS. 
26. obscurus (Swains.). (p. 232.) W. U. States to 
[wrightii, Baird.] Mexico, 
27. affinis (Swains.), Mexico. 
(Cf. Salv. & Godm. Biol. Centr.-Amer., Aves, 
ii. p. 78 (1889)). 
28. griseus, Brewst., Auk, 1889, p. 87. Lower California 
(Sonora). 
‘29. canescens, Salv. § Godm., Biol. Centr.-Amer., Mexico. 
Aves, ii. p. 79 (1889). 
30. trepidus, Ne/son, Auk, 1901, p. 47. Guatemala. 
31. atriceps, Salvin. (p. 220.) C. America 
[ Cf. Salv. & Godm. Biol. Centr.-Amer., Aves, (Costa Rica to 
ii. p. 79 (1889).] Panama). 
LXXII. LAWRENCIA, Ridgw. 
(Sclater, ¢.c. p. 233.) 
1, nana (Lawr.).  (p. 283.) 8. Domingo. 
LXXIII. NUTTALLORNIS, Ridgw. 
(Ridgw. Man. N. Amer. B. 1887, p. 337.) 
[Cf. Oberholser, Auk, xvi. p. 331, 1899.] 
1, borealis (Swains.), (p. 234.) N. America. 
C. America 
(Mexico to 
Panama, winter). 
Colombia, Peru 
(winter). 
