DESCRIPTION OF CAMPS. 339 



(Zenmlura carolbiensis), were breeding at the time of our sojourn; nor was 

 the fiixuna particiihirly interesthig, except fronx the occurrence of swarms 

 of the Rufous Hummer {Selasjihonis rufus) among the sun-flowers, and of 

 several pairs of the Eastern Kingbird (Ti/rannus caroUnensis), which appeared 

 to have bred in the cotton-Avood trees, a few individuals of Coccyzus ameri- 

 canus and 3Ii/iodioctcs pusillus, and several families of Sialia mexicana, being 

 the only other birds of note which came under our observation. 



6. Truckee Reservation, near Pyramid Lake (August 10-1 G, 1867; Decem- 

 ber 9-19, 18r)7; May 15-June 0, 18C8). — Investigations along the lower 

 portion of the Ti-uckee Valley extended from the shore of Pyramid 

 Lake several miles up the river, and embraced several trips across the 

 desert mesa to the northern end of the Virginia range, fronting on the 

 southern shore of the lake, besides occasional visits to the islands within 

 the lake. The fertile valley of the river received the principal attention, 

 however, on account of the abundance of its birds; and, as respects the 

 character of the locality where our observations were mostly made, there 

 was no material difference from the surroundings of our former camp at 

 the Big-Bend, twenty -five miles above, except that the valley was consider- 

 ably broader and the cotton-wood groves propoi'tionately more extensive. 

 During our sojouni here, from May 15th to June 6th, one hundred and 

 two species were observed in the valley of the river, most, if not all, of 

 them breeding in the locality. The following are the species observed: — 



1. Tardus ustiilatus One specimen. 



2. Orcoscoptes nioiitamis Common. 



3. Troglodytes parkiiiaiiiii Abundant. 



4. Tclinatodytes paludicola Abundant. 



5. DendrtEca aestiva Abundant. 



G. Geotlily pis triclias Common. 



7. Ictoiia longicauda Common. 



8. Pyranga hidoviciana Common. 



!t. Iliniiulo boiTC'ornm Common. 



10. Tacliyciiicta bicolor Abundant. 



1 1. Tacliycineta thalassina Common. 



12. Proguo subis Rare. 



13. Stelgiiloptcryx serripciiuis Abundant. 



14. Coty le riparia Abundant. 



].'). Petroclu'lidon Imiifroiis Abitndant. 



1(5. Viroosvlvia swaiiisoiii Abundant. 



