CAPRIMULGIDaE — THE GOATSUCKERS. 411 



Antrostomua r. Sclater, P. Z. S. 18(56, 13(3 ; A. rutilus, Eukm. Syst. Ueb. II, 

 385) and A. ornatus (ScL. P. Z. S. 1866, 586, pi. xlv), of South America, 

 appear to be the nearest relatives of this species, agreeing very closely in 

 coloration ; but both have the rictal bristles simple, without lateral filaments, 

 and would thus seem to be distinct species. lu the latter, the wliite spaces 

 of the tail are found only on the second and third leathers, instead of on the 

 outer three, while the former is said to have no such markings at all. 



Habits. The exact extent of the geographical range of this species is 

 not very clearly defined. Karely anywhere a very abundant species, it is 

 more common throughout Florida than in any other State. It is also found, 

 more or less frequently, in the States of Georgia, South Carolina, Alabama, 

 Mississippi, Louisiana, and Texas. Dr. Woodhouse mentions finding it 

 common in the Creek and Cherokee countries of tlie Indian Territory, and 

 also extending into Texas and New Mexico. Mr. Dresser noticed several 

 of this species on the Medina Eiver, in Texas, April 28, and afterwards 

 in May. On the 18th of the same month he again found it very numerous 

 at New Braunfels, and also, on the 20th, at Bastrop. Dr. Heermann states 

 that these birds visit the neighborhood of San Antonio in the spring, and 

 remain there to raise their young. 



James Eiver, Virginia, has been assigned as the extreme northern limit 

 of its migrations, but I can find no evidence of its occurring so far north, 

 except as an accidental visitant. Wilson, indeed, claims to have met with 

 it between Eichmond and Petersburg, and also on the Cumberland Eiver. 

 Dr. P>achman states that it is not a common bird even in the neighliorhood 

 of Charleston. Mr. Audulion, who claimed to be a very close and careful 

 observer of the habits of this species, states that it is seldom to be met 

 with beyond the then southern limits of the Choctaw nation, in Mississippi, 

 or the Carolinas on the Atlantic coast. 



I have been informed liy Dr. Kollock that these birds are rather common 

 at Cheraw, in the northern part of South Carolina. Dr. Bryant found them 

 quite abundant near Indian Eiver, in Florida, though he makes no mention 

 of them in his paper on the birds of that State. Mr. Cassin informed me 

 that Colonel McCall met with tliis bird in New Mexico. Lembeye includes 

 it among the birds of Cuba, but in reality refers to cvhanensis. 



These birds, according to Mr. Audubon, are not residents, but make their 

 appearance within the United States about the middle of March. They are 

 nocturnal in their habits, remaining silent and keeping within the shady re- 

 cesses of the forests during the daytime. As soon as the sun has disap- 

 peared and the night insects are in motion, this species issues forth from its 

 retreat, and begins to give utterance to the peculiar cries from which it 

 receives its trivial name, and which are said to resemble the syllables chuck- 

 v:ills-in'-do2v. These sounds are said to be repeated with great rapidity, yet 

 with clearness aiul power, six or seven times in as many seconds. They are 

 are only uttered for a brief period in the early evening. 



