1,30 
THE CONDOR 
Vol. XI 
three liundred yards distant, occasionally giving this same whistle. Only once 
or twice did we hear the fnll L'pland Plover “song". 
On Jnne 14, 1908, we located a pair of plover that undoubtedly had a nest 
not far from the shore of the lake, hnt several careful searches were unsuccessful. 
This pair of birds was most demonstrative on July 4 and 5. On July 11 their 
actions j)lainly indicated that young ones were near at hand. 
Oxyechus vociferus. Killdeer. 
'Idle first sound that greeted us in the morning and the last thing we heard 
at night was the dreary monotonous cry of the Killdeer, and even in the dead 
of night their notes were occasionally heard. The birds were encountered every- 
where: on the lake shores, in the marshes and often back on the dry prairie. 
'I'hey arrived about the middle of i\Iarch ('March 10, 1907, is my earliest 
I-'ig. 56. KIELDRER AND FOUR EGGS BURIED BY BURYING 
BEETLES AFTER PARENT IIAD DIED ON EGGS 
date), and by the middle of .\pril were abundant. 
Quoting from my notes of Ajiril 26. 1907 : "The Killdeer have evidently 
begun nesting as we did not see one-tenth as manv around the lakes as we did 
last week (April 21) ; but they are common in isolated jiairs farther back on dry 
land. We found two broken eggs on the lake shore and one on the dry prairie.’’ 
The earliest nest was found May 10, and the eggs hatched [May 16. The 
hulk of the nests were found during the latter half of iMay, Init nests with eggs 
were found throughout the month of June. One young of the year was seen 
July 28, which was unable to fly at that late date. l\lr. Hersey was fortunate 
enough to see one set of eggs hatch. He says the parent birds carried every bit of 
shell away from the nest within two hours after the hatching. The birds' actions 
when about the nest were always confusing and we did not flush the parent from 
