1914 BIRDS OF ARIZONA 69 



304. Dendroica coronata (Linnaeus). 



Myrtle Warbluk. 

 Status— Four records: One from the Chiricahua Mountains, March 26. 

 1881 (Brewster. 1882, p. 137) ; one from Tucson, January 28, 1886 (Scott, 1888. 

 p. 34) ; Pima Indian Reservation. Septemlier. "one seen" (Rreninger, 1901 a, p. 

 46) ; Tucson, one seen January 28. 1912 (Sloauai\er. 1913. \^. 197). 



305. Dendroica a-'iduboni auduboni (Townsend). 



Audubon Warbler. 



Synon}m — Syh'icola audnhonii. 



Status — Common summer visitant in high Transition and upward in the 

 motmtains of northern Arizona : San Francisco Mountain, ^Mogollon Mountains, 

 etc. Abundant in winter in the Lov,'er Sonoran valleys of the southern and west- 

 ern parts of thf" state: Tucson, v^an Pedro River. Yuma, etc. Winter visitant in 

 the Colorado Valley at least as far north as Fort ^Mohave. Occasional in winter 

 at Fort ^^■ hippie (Coues. 1866a. p. 69"). Very abundant and of general distri- 

 Inition during- the migrations. 



306. Dendroica auduboni nigrifrons Brewster. 



Black-frontku Warbler. 



Synonyms — Dendroica auduboni, part: Dendroica nigrifrons. 



Status — Reported from the Huachuca and the Chiricahua mountains, where 

 it is a fairly common summer visitant in the Transition zone. D. a. auduboni has 

 been recorded as an uncommon summer visitant in the Santa Catalina Mountains 

 (Scott. 1888. p. 34). but I have -^een typical examples of nigrifrons ('in the col- 

 lection of F. S. Daggett) taken in these mountains in June, 1906, so that the breed- 

 ing range of this form extends at least that far north. Probably it inchidcs all the 

 high mountains south of the Mogollon Plateau, but it is impossible at present to in- 

 dicate exactly the dividing line between the breeding ranges of nigrifrons and 

 auduboni. From the critical coiuments made upon Dendroica auduboni by Coues 

 in his "List of Birds of Fort Whipple" ( i86r)a. p. 69) it is evident that he collect- 

 ed in that region specimens approximating the characters of D. a. nigrifrons. 



307. Dendroica g-raciae Baird. 



Grace Warbler. 

 Statu-s — A summer visitant in the Transition zone of eastern and central 

 Arizona, apparently least abundant in the extreme southern part of the state. Tn 

 the Huachuca Mountains it is common during the migrations, but decidedly rare 

 m the breeding .season. Reported from the Huachuca. Chiric:diua, Santa Catalina. 

 ATogollon. and White mountains. San Francisco Mountain and Fort Whipple. 

 There is no record of its occurrence in the lowlaf.ds during the migrations. 



308. Dendroica nigrescens (Townsend). 

 BixcK-TiiROATEn Gray Warbler. 



Status — A conunon summer visitant in low Transition throughout Arizona. 

 Has been found breeding in the Huachuca. Santa Rita. Whetstone, and Santa 

 Catalina mountains, San Francisco Mountain, and at Fort Whipple. Abundant 

 and generally distriliuted during the migrations. 



