LAUID.E — THE (iULLS AND TERNS — LAUUS. 



2G1 



coverts, lower and lati-ral porlioii-s of the ruinii, bonlur of tlio wing, nlula), jiriniary coviTtn, and 

 ^'rcatcr |iortioii of the iiriniiirics Hiiow-wliitc, tliu nuck and lower partn with u dfliuato ro8e-pink 

 lilush in fresh HiwuiniunH. Mantle, inciudin^f u|)|)er and middle portions of rump, duliuite li^ht 

 |icurl-l)lue. Three outer primaries chiefly white, the outer web of the exterior (|nill, and the 

 tcniiiual portion of all, deep black ; fourth quill Himilar to the third, but the inner web jmle ({ray- 



L- plnliulflphiii, .iiimiiiiT jiliimaifi: 



isli Iducj fifth and sixth tpiilU jtale grayish blue, with a lar},'e subterniinal lihick space, and ti|>peJ 

 witii whiti! (third and fourth ipiills also marked with a small white apical spot) ; remaining ipiills 

 pale grayish bine, without, white tips, but marked near the end, usually on inner web only, with 

 II lihu'k spot. Bill tleep black ; iris dark brown ; interior of mouth, with legs and feet, rich clear 

 mange-red ;* daws black. Aditlt, in mnter : Similar, but head and neck white, the occiput tinged 

 with grayish, and the auricular region marked by a spot of dusky gmy. Legs und feet flesh-color. 



Summer tumult. 



Ymmg, first plumage : Sides and under part of head and neck, entire lower parts, upper tail-coverts, 

 and iKisal three fourths of the tail pure white ; crown, occiput, and upper part of the back brownish 

 gray ; a dusky grayish spot on the auricular region ; scapulars and posterior interscapulars grayish 

 uiuhcr, tipped with pale buff ; central area of lesser wing-covert region dusky brownish gray ; 

 rest of wing-coverta, e<lges of secondaries, greater portion of inner primaries, with upi>er and central 

 portions of the rump, light grayish blue ; band across end of tail bLVck or dusky, the tip narrowly 



' In snmn very high-colored siiccimens the feathen surrounding the naked rim of the eyelids are fine 



orange-red. 



