BIKDS OF NOETH AMD MIDDLE AMERICA. 97 



il. Throat dusky or mottled with dusky. (Palpearctic Eegion; introduced into 



Oregon, etc.) Spinus spinus, adult male^ 



<hL Throat without any dusky; under parts mostly light gray or olive-green. 



(Highlands of Guatemala and Chiapas. ) 



Spinus atriceps, adult male and female (p. 100) 



cc. Pileum not uniform black or dusky. 



■ d. Pileum darker than back, especiallj' the forehead; under parts plain light 



gray, only the under tail-coverts streaked Spinus atriceps, young 



(Id. Pileum not darker than back; under parts whitish, more or less distinctly 



streaked with dusky or grayish. 



f. Rump with ground color yellow or yellowish; back, etc., yellowish olive 



or olive-greenish Spinus spinus, female and young 



ee. Rump with gi'ound color grayish or whitish ; T)ack, etc. , grayish or 1 )rown- 



ish olive.^ 



/. Smaller (wing not more than 76.20, usually much less, averagmg 72.39); 



under parts usually heavilj^ or conspicuously streaked with dusky. 



(North America, except Mexico.) 



Spinus pinus pinus, male, female, and young (p. 97) 



//'. Larger (wing usually more than 7().20, averaging 76.45) ; under parts 



usually (?) indistinctly or obsoletely streaked with grayish or dusky. 



(High mountains of Mexico, in coniferous belt.) 



Spinus pinus macropterus (p. 100) 



bl>. Under parts without streaks, except sometimes on longer under tail-coverts.'* 



c. Head black all around, including foreneck. 



(/. Sides of neck, hindneck, liack, and rumi) black. (Costa Rica to Vene/Aiela 



and Ecuador. ) Spinus xanthogaster, adult male ( p. 105) 



dd. Sides of neck yellow; hindneck and back olive-green; rump olive-green or 



yellow. 



e. Smaller and brighter colored, the breast, etc., deep lemon to nearly saffron 



yellow; wing averaging 64.01, tail 39.12, exposed culmen 11.43, tarsus 



12.95. (Eastern Mexico to Honduras.) 



Spinus notatus notatus, adult male and female (p. 102) 



tv. Larger and duller in color, the breast, etc., dull gamboge or olive-yellow; 



wing averaging 66.55, tail 40.39, exposed culmen 11.94, tarsus 13.46. 



(Mountains of western Mexico.) 



Spinus notatus forreri, adult male and female (p. 103) 



u 1 -4-1 J- V 1 1 f Spinus notatus notatus ) 



cc. Head without anv black .' ^ '- voung 



I Spinus notatus forreri I 



cm. Plumage partly red. (Cuba; Porto Rico; Trinidad; Venezuela.) 



Spinus cucullatus (}>. 104) 



SPINUS PINUS PINUS (Wilson). 



PINE SISKIN. 



Adult. — Above o-rayish or brownish, eonspicuoii.sly streaked with 

 dusky, the ground color of the rump paler (whitish or light grayish), 

 sometimes tinged with pale j^eilow; wings and tail dusky, or dull 



' Although introduced, with other European birds, into Oregon, there is no record 

 to the effect that this species has become naturalized. \_Fringilla'] spinus Linnaeus, 

 Syst. Nat., ed. 10, i-, 1758, 181 (based on Fauna Suecica, 203, etc.); ed. 12, i, 1766, 

 322. — Spinus spinus Stejneger, Proc. U. S. Nat. Mus. ix, Feb. 14, 1887, 651. 



■^ I have not been able to discover a single positive character w^hereby the adult 

 female and young may be infallibly distinguished from S. pinus, but, as a rule, the 

 above-mentioned characters are diagnostic. 



* In young birds chiefly. 



17024—01 7 



