TY l!A N N ID.K — THE F LV( •ATCIIER!='. 327 



Tho opgs of tliia sptioius arc not easily (li.stingiii.slmlile I'rniu tlinse of tlio 

 coiuinoii Ivingltird. They have a },'roiiiHl-e()lor of a crystalline whiteness, 

 marked with hold daslies of reddish ai;d purplish hrosva, the latter fewer 

 and faint. They arc ohlmi^ in shaiie, are pointed at ono end, anil measure 

 1 inch in length by .70 of an ini'h in breadth. 



Tyrannus vociferans, Swaixsox. 



CASSIN'B FLYCATCHER. 



Til rail II IIS vm-ilViunis, .SwAiN.sdN, Moii. Tyiiint Slirikis in l.Mmifcrly Journal So. X.\, .Tiiii. 

 l.SL'ii, :i7;). -^lii. I'hilos. Maj,'. I, l,s:i7, atis. - I'.aii;|), Minis N. Am. IS.'.M, 171, |il. 

 .\lviii. - III. .M. li. II, liinls H, pi. x. — Hi.i,. Catiil. lH(i2, 2;!;"). — CiMPl'r.li, Urn. Cal. 

 I, 1H70, lilt. Liijiliiiiir.i fiiri/iriiii.i, Caii.vn. Mils. Ilciii. II, 77. T[/raninis eiinsini, 

 I,A\vi!r.N( T., Ann. N. Y. Lye. N. II. Y, ISJ'i, ast, pi. iii, t\<^. 2 (Texas). 



Sr. ("iiAli. liill tioiii tliii forulieail aliout as loiiij; as the head. Tail (-ven or slii,'litly 

 roiiiiiled. Outci" fivi! primaries ntto'-uali'd ; tlio first four aliriiptly and d(.'c'|)ly ciiiarijji- 

 natcd ; tliiid iinill ioiijicst, .second and I'imrlh a liltli! less, first .shorter than tiie si.xlii, and 

 half an inch less than the loni,'est. Head and neejv nliove and on ihu sides rather dark 

 bhii.sh-ash; the throat and breast similar, and only a little paler. Uest of upper parts 

 olivc-^rieeii tin,u:eil with fjray, mixed with hrowii on the niiiip ; the upper tail-eoveits and 

 siirfaee of tiie tail nearly Ijjack ; tho outer web of tlii; external feather and tlit! tips of all 

 pale brown. The eliin i.s white, in .stronj,' contrast to the dark ash of the throat ; the 

 rest of the under parts brif.d)t sulphur-yellow (the sides ohvaeeoiis), palest on the iiniler 

 tail-coverts and inside of winjj;. A concealed viM'milioii patch in the erown, liordcred by 

 straw-yellow. Winij-fealhers brown, tinged with olive, becoming paler towards the edge, 

 licngth, 8.S0 ; wing, iVJ,'. ; tail, 4.2."). 



IIaii. Vall(\v of (lila and southern California, eastward to I'eoos River, Texas, and into 

 Mexico, on talije-lands; north along tiie I'lain.s to Fort I,araniic, south to ('osta Rica. 

 Oaxaca (8ci,. 1'. Z. S. 18.V,), .38:!); Vera IV. (f^ci.. Ibis I, I2l): ^V. Arizona (Corns, P. A. 

 N. S. 18CC, u!)/ ; Xvrn Cruz, hot .and temp, regions, and Plateau (Sum. M. Bost. Soe. I, o'>7.) 



The table of specific characters presented under the generic head will 

 readily serve to distinguish this species from its near ally, T. vniim/is. The 

 white outer web of the exterior tail-feather i i rrrficah'-v, compared with tlie 

 brown web, only edged with whitish of the present bird, is always sullicient 

 to separate them ; while the deep ash of the jugulum, and the much lighter, 

 more brownish shtide of the wings, are entirely peculiar features. 



Habits. This bird is abundant in A'^era Cruz, where it is known by the 

 name of Fortiujuc'z. According to Sumichrast, it belongs to the hot and 

 tempenite regions, rather than the alpine. It is also common in the Plateau, 

 and is found in all parts of ]\Ie.\ico. 



In Arizona Dr. (^oues states this bird to be an abundant summer resident, 

 arriving in that Territory during the third week in April, and remaining 

 until the latter part of September. It was fouu'l in every kind of htcality. 

 lie furnishes no information as to its habits. 



During the Afe.xican Boundary Survey this sjiecies was ttiken on the 



