132 
THE V^ILSON BULLETIN— September, 1922 
The farming lands, which are all irrigated, have large groves 
of Poplar trees, fruit orchards, alfalfa fields and gardens. 
Along all the irrigation ditches are found dense growths of 
willow trees and bushes. 
The various descriptions heretofore given will be referred to 
under separate headings of the many birds found breeding in 
this valley. 
My observations covered a period from May 20 to June 20, 
1922, being the height of the breeding season during this year. 
While nests of all the species listed were not located there is 
no doubt of their nesting, as the birds were mated, and were ob- 
served during my stay. 
Nearly all the lakes contain fish and vegetation, suitable 
for food for the many wading and water fowl which annually 
come here to nest. 
It was observed that the various species selected breading 
grounds quite separate and apart. For example, the Greebes 
were found on the west side of the lake, the Gulls, Terns and 
Pelicans on the east side. 
The Redhead Ducks were found only in one portion of the 
valley. 
Reference to the map which accompanies this article will 
further make clear this x>oint. 
1. We STEEN Grebe — JS chmophorus occidentalis. 
Not common. Four pair on Crump Lake and three pair on Hart 
Lake. Not seen in other parts of the valley. 
4. American Eared Grebe — Coly mbits nigricollis calijornicus. 
Very common on Hart and Crump Lakes. Nesting in the tides bor- 
dering on the lakes. Nests of tules floating on water, four to six eggs. 
6. Pied-billed Grebe — Podilymbus podicipes. 
One pair found on Pelican Lake. Would appear to be a rare nesting 
bird here. 
54. Eikg-eilled Gull — Lams delawai'cnsis. 
Very common. Nesting on island in the east part of Crump Lake; 
500 nests on one island and 85 nests on another island. Ninety per cent 
Of nests contained young June 11. Two and three eggs in sets. 
64. Caspian Tern — Sterna caspia. 
Not common. Twenty-five pair nesting in colony on island in Crump 
Lake. Complete sets by June 11. Nesting with the Ring-billed Gulls. 
One, two, three eggs in set. 
60. Forster’s Tern — Sterna forsteri. 
Nesting on island in Crump Lake; separate and apart from other 
birds. Nest very compact, made of flags and grass, raised four or five 
inches from ground. Three eggs in set June 11. 
77, Black Tern — Hydrochelidon nigra surinamensis. 
