508 APPENDIX. 



maining during the winter; most of these had white edgings on all their feathers, 

 and were probably young of the year. Their flight is described as wavering, some- ' 

 thing like that of Colaptes mexicanus. While flying they utter a high note, resembl- 

 ing ivhuif-iohuif, repeated several times. He never heard them sing, as they are said 

 to do, although he has watched them frequently. They are very restless, and are 

 always found about the mistletoe, on the berries of which they feed almost exclu- 

 sively. The nest is saddled on a horizontal branch, generally of a mesquite-tree. 

 It is a shallow structure, about 4 inches across ; its inner diameter is 2| inches, 

 depth I an ijich. It is composed of fine sticks, fibres of plants, and lined with a 

 little Cottonwood down and a stray feather. The first nest was found May 16. 

 This was principally lined with the shells of empty cocoons. The number of eggs 

 was two. Though he found more than a dozen nests with eggs and young, he 

 never found inore than two in a nest. Their ground-color varies from a greenish- 

 white to a lavender and a grayish-white, spotted all over with different shades of 

 brown. The spots are all small, and most abundant about the larger end, and vary 

 greatly in their distributions. In size they range from .97 of an inch to .84 in 

 length, and in breadth from .66 to .60. 



CoUurio ludovicianus, var. robustus (I, 420). See xVm. Nat. VII, Octo- 

 ber, 1873, p. 609. 



Certhiola newtoni (I, 427). See Am. Nat. VII, October, 1873, p. 611. 



Certhiola caboti (I, 427). See Am. Nat. VII, October, 1873, p. 612. 



Certhiola barbadensis )^ (I, 427). See Am. Nat. VII, October, 1873, 



Certhiola frontalis i p- 612. 



Pyranga hepatica (I, 440). Captain Bendire found what he identified as 

 this species breeding near Tucson, Arizona. Its nests and eggs resembled those of 

 P. cestiva. The latter vary in length from 1.02 inches to .95, and in breadth 

 fi'om .70 to .67 of an inch. Their ground-color is a pale light green. Some are 

 sparingly marked over the entire egg with very distinctive and conspicuous blotches 

 of purplish-brown ; others are covered more generally with finer dottings of the 

 same hue, and these are so numerous as partly to obscure the ground. In shape 

 the eggs are oblong oval, and are of nearl}^ equal size at either end. This species 

 was also obtained by Mr. Henshaw, at Apache, Arizona. 



As no skins of the parent appear to have been preserved, it is not improbable 

 that the bird in question may be really P. cestiva, var. cooperi. 



Hesperiphona vespertina, var. montana (T, 450). Two adult males 

 obtained at Waukegan, Illinois, in January, 1873, by Mr. Charles Douglass, are 

 typical examples of the Rocky Mountain form. 



Finicola enucleator (I, 453). Dr. Cooper mentions having shot a fine male 

 of this species near the summit of the Central Railroad Pass at an elevation of 

 al)out 7,000 feet. It was in a fine orange-red plumage. It was moulting, and 

 appeared to be a straggler. 



Pyrrhula cassini (I, 457). Since the publication of the article on this spe- 

 cies we learn from Cabanis (Journal fiir Ornithologie, 1871, 318, 1872, 315) that 

 the species is not uncommon in the vicinity of Lake Baikal, in Siberia, and that it 



