314 BULLETIN 17 9, UNITED STATES NATIONAL MUSEUM 



'•'■wTiee-e-oop, often repeated, and distinguishable at a considerable 

 distance." 



Field marks. — ^The beardless flycatcher is evidently not easy to rec- 

 ognize in life, as it has no very striking color characters. Its resem- 

 blance in size, general color, and behavior to the verdin, small vireos, 

 warblers, and kinglets has been mentioned, and it might easily be 

 overlooked on this account. But, Mr. Phillips suggests (MS.) that 

 there is no close resemblance in color to the verdin, the tail is much 

 shorter and less active and the bill shape is different. Although tiny, 

 it is after all a flycatcher and shows many of the characteristic traits 

 and colors of that group. Perhaps its characteristic voice is the best 

 field mark. 



DISTRIBUTION 



Range. — Southern Arizona south to Costa Eica. 



Breeding range. — The beardless flycatcher nests north to southern 

 Arizona (Tucson) and southern Texas (Lomita and Hidalgo). East 

 to Texas (Hidalgo) ; Quintana Roo (Cozumel Island) ; British Hon- 

 duras (Manatee River) ; and Costa Rica (Tenorio). South to Costa 

 Rica (Tenorio, Bebedero, and Carillo) ; Oaxaca (Tapanatepec and 

 Chivela) ; Morelos (Cuernavaca) ; and Nayarit (San Bias). West 

 to Nayarit (San Bias) ; Sinaloa (Mazatlan) ; Sonora (San Javier) 

 and Saric) ; and Arizona (Papago Indian Reservation and Tucson). 

 A specimen taken March 1, 1911, 60 miles north of Tucson, is the 

 northernmost record. 



Winter range. — The species appears to be nonmigi-atory in the 

 southern part of the range, although in winter it withdraws entirely 

 from the United States. At this season it has been detected north to 

 Sonora (Alamos) ; southern Tamaulipas (Altamira and Tampico) ; 

 and Quintana Roo (Cozumel Island). 



Migration. — The i-pecies has been noted at Lomita, Tex., as early 

 as March 2 and at Tucson, Ariz., on April 22. No data are available 

 for the fall migration. 



Egg dates. — Arizona : 3 records. May 13 to July 10. 



British Honduras : 2 records, May 7 and 16. 



Family ALAUDIDAE: Larks 



ALAUDA ARVENSIS ARVENSIS Linnaeus 



SKYLARK 



CONTBIBUTED BY FeANCIS ChAELES RobEET JoxJEDAIN 



HABITS 



The skylark has a double claim to a place in the American 

 list, for it is said to have occurred, as a genuinely wild bird, acci- 



