REGULVS. 567 



low, especially in winter. Youmj : Similar to adult, but wing-coverts tipped with 

 dull light greenish yellow, and lower parts more decidedly tinged with yellow. 

 Length about 4.75-5.50, wing 2.40-2.70, tail l.SO-2.00, exposed culmcn .35-.40, tar- 

 sus .70-.80. JLib. Xortheastern Asia, and western Alaska, north of the peninsula. 

 747. P. borealis (Blas.). Kennicott's Willow Warbler. 



Gesus REGULUS Cuvier. (Page 566, pi. CXXIV., fig.s. 3, 4.) 

 Species. 



Co-MMON Characters. — Above plain olive-green or olive-grayish, brighter on 

 rump and edges of quills and tail-feathers, duller (sometimes grayish) anteriorly ; 

 middle and greater wing-coverts tipped with whitish, producing two narrow bands, 

 and tcrtials edged, more or less, with same ; secondaries with a broad basal bar of 

 whitish ; lower parts dull whitish, tinged, more or less, with olive or dull yellow- 

 ish ; crown usually orange, yellow, or red centrally. Young without black mark- 

 ings or bright colors on head, but otherwise like adults. -Nest very bulky, usually 

 more or less pensile (but variable in this respect), attached to small twigs in lower 

 portion of spruce or other coniferous trees, composed of delicate plant-fibres, mosses, 

 and various felted materials, and lined with soft feathers. Uijgs 5-10, whitish or 

 buffj-, minutely freckled with brown (sometimes apparently immaculate). 



a}. Nostril hidden by a single plume-like feather; adult with a black stripe on each 

 side of crown. (Subgenus lieguhis.) 

 b'. Forehead whitish, dull buffy, or light brownish ; crown-patch in male rich 

 orange, bordered with yellow, wholly j'ellow in female. (Adult males: 

 Forehead soiled white, sometimes more brownish, the superciliary stripe 

 similar; a duskj- streak in front of eye, but this not reaching to bill; a 

 dusky streak behind ej-e ; top of head black anteriorly and laterally, 

 this black with an internal border of yellow, enclosing a concealed 

 patch of rich cadmium-orange ; sides of neck and hind-neck graj'ish. 

 Adult females: Similar, but orange patch in centre of crown entirely 

 replaced by yellow. Young : Black head-markings obsolete, or very 

 faintly indicated, and bright crown-patch of adult wanting; otherwise 

 much like adult. Length 3.15-4.55. wing 2.10-2.25, tail 1.60-2.00, ex- 

 posed culmen .25-.30, tarsus .70. Kest a ball-like mass of green moss, 

 4.00, or more, in diameter, attached to extremity of branch of pine or 

 fir tree; lined with hair and soft feathers. Eggs 5-10, dull or buffy 

 white, finely and verj' faintly speckled or minutely freckled, chiefly 

 round larger end, with deeper buffy.) 

 c'. Colors duller and grayer. £V7(7S .52 X -41. Hab. Eastern and northern 

 North America, west to Rocky Mountains, breeding from extreme 

 northern and elevated portions of United States northward ; winter- 

 ing ncarlj- throughout eastern United States, and south to Guate- 

 mala 748. R. satrapa T.iniT. Golden-crowned Kinglet. 



