BIRDS OF NORTH AND MIDDLK AMKRICA. 



717 



paltM' iiiid less ))luisli; iintcrior portion of forchciul jiiid sides of foiv- 

 hcjid rtiul crown ])ljick, foniiin<;- :i conspicuous U-sliapcd mark; \vin»jfs 

 dull slate color with pale j^ray edj^in^s, these much l)roader and much 

 paler gray (sometimes whitish) on tertials; upper tail-coverts and tail 

 Mack, the lateral rectrices extensively white, with l)Iackish shafts, the 

 w hite oci'upyinu- the whole of the expos(Ml portion of l)oth webs on 

 the outermost rectrix, extending more nearly to })ase on outer web 

 than on inner, the second rectrix with tiM'minal half (ap])roximately) 

 white, the third broadly tipped with white; sides of head (including 

 lores, superciliary stripe, and auricular region) pale bluish gray or 

 grayish ])lue, becoming paler below; a white orbital I'ing; under parts 

 white, the throat, chest, and sides, especially the chest, faintlv shaded 

 with pale bluish gra}'; bill ])lack; iris brown; legs and feet black or 

 dusky; length (skins), 100-112 (107.3); wing, 49-54.5 (52.1); tail. 48-54 

 (50.3); exposed culmen, 9-11 (9.9); tarsus, 16.5-18 (17.2); middle toe, 

 8.5-9 (8.9).« 



Adult female. — Similar to the adult male, but gray of upper parts less 

 bluish (between pluni}>eous and slate-gray), and without the U-shaped 

 mark on forehead and sides of crown; length (skins), 102-112 (10(3.1); 

 wing, 50-52 (50.9); tail, 47.5-54 (50); exposed culmen, 9-10.5 (9.7); 

 tarsus, 16-18 (17.2); middle toe, 8.5-9 (8.9).'^ 



YoiiiKj male in first autumn and wintet\ — Similar to tht' adult female, 

 but gray of upper parts more bluish. 



Young female in first autumn and unnter. — Sinular to the adult 

 female, but gray of upper parts duller (light mouse gra}'). 



Y<>u)i<i., first ])luma<je. — Similar to the yoinig female in first autunm 

 and winter, but gray of upper parts paler and mor(> ])rownisli (nearly 

 smoke gray), and texture of plumage much looser. 



Eastern United States; north (breeding) to New Jersey (Bridgeton), 



(( Twenty-four specimens. 



b Thirteen specimens. 



Specimens from different geographic areas average, respectively, as follows: 



Local itv. 



Wing. 



Tiiil. 



Middle 

 toe. 



MAI.KS. 



NiiH- M'iiill iiijik's from .Miirylaiul and district of ('nlnnil)ia. 



( )ne adult male from Florida ( April A] 



Four adult males from Mississippi and Louisiana (breeding). 

 Nine adu't males from Tennessee to Illinois and Indiana.. 

 ( Mir adull mall' from Texas (San Anton in, .linie) 



KKMAI.KS. 



Niiu' adult fen\ales from Maryland and District i 



Two adult females from Illinois and Tennessee 



One adull female from Louisiana (March 31) 



One adult female from Texas (San Antonio, March 29) 



Inmbia. 



52. 1 

 50 

 50.7 

 52. 8 

 53 



50.9 

 50.5 

 52 

 50 



50.6 



60 



-18.5 



50.7 



50.5 



•19.4 

 50.7 

 53 

 51.5 



9 



9 



S.7 



8.9 



8.5 



9 



8.7 



