308 



[April, 



HIRUNDO. 



17. H. purpurea. Not very common. Observed only at Fort Webster. Ar- 

 rives about the middle of April and remains about two months only. 



18. H. bicolor. Very common throughout New Mexico. Arrives about the 

 10th of April, and migrates about-the last of August. 



19. H. thalassina. Common, more particularly along the Mimbres. Arrives 

 early in April, and leaves by the 5th of August. 



20. H. rufa. Quite common along the Rio Grande. Time of arrival a few 

 days later than H. fulva; migrates about August 15th. A few only seen on the 

 Mimbres. 



21. H fulva. Observed only at the Mimbres. Not numerous. Arrives the 

 last of March and migrates the last of July. 



22. H. riparia. Common botb in the Valley of the Del Norte and among the 

 mountains. Arrives soon after H. thalassina, and migrates somewhat later. 



MUSCICAPA. 



23. M. verticalis. Found in abundance among the mountains. Arrives at 

 Fort Webster March 25th, and leaves about the 20th of August. Never seen 

 along the Valley of the Rio Grande. 



24. M Saya. Seems to take the place of the Verticalis along the Rio Grande. 

 Common at Forts Fillmore and Thorn. Arrives the 1st of February, and is not 

 seen after the 25th of July, unless very rarely ; one seen in January. 



25. M. nigricans. Rather common among the mountains. Occasionally seen 

 along the Del Norte. Always affects the neighborhood of streams. Arrives 

 31st of March ; not observed after the 20th of July. 



26. M. pusilla. Not rare along the mountain streams ; often observed at Fort 

 Webster. Arrives late in May, and migrates the last of July. 



PYROCEPHALUS. 



27. P. rubineus. One shot in May at Fort Webster ; the only specimen met 

 with ; a male in full plumage. 



PTILOGONYS. 



28. P. Townsendii. Very abundant during the winter months only, about 

 Fort Webster, where they always frequent the neighborhood of cedar trees and 

 feed on their berries. Arrive in October in considerable flocks, and soon sepa- 

 rate into pairs or threes ; migrate the last of March. They appear to possess no 

 power of song, although in March they frequently utter a peculiar note, very 

 short and interrupted. Their call note may well be compared to the slight creak- 

 ing of an ungreased carriage wheel. Their call note differs from their attempts 

 at singing in spring. Seem very retiring, and are usually met with in shady 

 glens near a stream where cedars abound. 



They do not nest in the neighborhood of the Mimbres, nor do they migrate in 

 the spring in flocks, as far as 1 can ascertain. Never met with along the valley 

 of the Rio Grande. 



29. P. nitens. Three or four pair observed about Fort Webster, and shot in 

 June, 1853. First observed May 25th; none seen after July. Not seen on the 

 Rio Grande. Nest on the Mimbres. 



TOXOSTOMA. 



30. T. rediviva. Found rather abundantly about Fort Fillmore. Frequents 

 the mesquit exclusively. More observed during the months of October and 

 November than during the summer. A few seen during the month of August. 

 Am unable to say whether it breeds here. Rarely seen after December. Two 

 or three seen at Fort Thorn during December 1853. Never observed on the 

 Rio de los Mimbres. 



