SAN LUCAS NIGHTHAWK 253 



zaba). South at least to Panama (Colon and Veragua) ; and Co- 

 lombia (Noanama), 



Sjyring migration. — Earlj^ dates of spring arrival in the United 

 States are : Texas — Brownsville, March 8 ; northwestern Atascosa 

 County, March 29; Refugio County, April 11. New Mexico — State 

 College, April 20; Apache, May 6; Deming, May 17. Arizona — 

 Gadsden, March 6; Tucson, April 7; Fort Mojave, April 17. Cali- 

 fornia — Mecca, March 20; Buena Park, March 22; Pasadena, March 

 31 ; Azusa, April 2. 



Fall migration. — Late dates of fall departure are: California — 

 Clovis, September 18; Buena Park, November 1. Nevada — Charles- 

 ton Mountains, September 14. Arizona — Paradise, September 25; 

 Yuma, October 5; Boundary, October 5. New Mexico — Apache, 

 August 11; State College, September 21. Texas — Atascosa County, 

 October 4 ; Corpus Christi, October 22. 



Casual records, — A specimen was collected at Hoehne, near Trini- 

 dad, Colorado, on June 11, 1908. A winter record for Arizona is a 

 specimen collected at Phoenix on December 27, 1897, and a similar 

 case for California is the observation of one near Calexico on Janu- 

 ary 23, 1922. 



Egg dates. — California : 60 records, April 21 to July 11 ; 30 records, 

 May 11 to June 12, indicating the height of the season. 



Baja California : 3 records. May 12 and July 22. 



Mexico : 7 records, May 20 to July 6. 



Texas: 60 records, April 16 to June 29; 30 records. May 8 to 

 June 3. 



CHORDEILES ACUTIPENNIS INFERIOR Oberholser 



SAN LUCAS NIGHTHAWK 



HABITS 



The San Lucas nighthawk is apparently a permanent resident 

 on the peninsula of Baja California, breeding north to about lati- 

 tude 30° and wintering in the extreme southern part. It is a smaller 

 edition of the Texas nighthawk, which it closely resembles in gen- 

 eral appearance except in size. It is larger and and somewhat lighter 

 in coloration than the other Central American races of the species, 

 William Brewster (1902) observed that his specimens from Lower 

 California "average a trifle smaller and, as a rule, are somewhat 

 lighter colored than a number of Texas specimens," but evidently 

 did not think that the difference was worth recognizing in nomen- 

 clature. He writes : 



At Triimfo the bii'ds were Jibundant during the last three weeks of June, 

 appearing regularly every evening near the ranch, and skimming back and 

 forth close over a large wood pile, which evidently harbored insects on which 



