Wing without any white; three outer tail-feathers only,
marked with white. Bill, .40 and .25; wing, 3.10; tail,
2.80; tarsus, .80. _Hab._ Eastern Province North America.
Straggling west to Arizona (COUES); in the northern Rocky
Mountains, mixed with _J. oregonus_ … var. _hyemalis_.
Wing with two white bands (on tips of middle and greater
coverts); four outer tail-feathers marked with white.
Bill, .50 and .30; wing, 3.40; tail, 3.20. _Hab._ High
mountains of Colorado (El Paso Co., AIKEN) … var. _aikeni_.
3. J. caniceps. Back (interscapulars) rufous; scapulars
and wings uniform ashy. _Hab._ Central Rocky Mountains of
United States. (Along southern boundary mixed with _J.
cinereus_.[118])
B. Bill with the upper mandible black, the lower yellow. Ash
of the jugulum fading gradually into the grayish-white of the
abdomen.
4. J. cinereus. Whole back, scapulars, wing-coverts, and
tertials rufous.
Throat and jugulum pale ash; back bright rufous. Wing,
3.10; tail, 3.00; bill, .34 and .25; tarsus, .80. _Hab._
Tablelands and mountains of Mexico … var. _cinereus_.[119]
Throat and jugulum deep ash; back dull, or
olivaceous-rufous. Wing, 3.15; tail, 3.10; bill, .44 and
.34; tarsus, .90. _Hab._ High mountains of Guatemala …
var. _alticola_.[120]
Junco hyemalis, SCLATER.