ee ee 
Molt 
The nesti 
ritories 50-55 
ser Sing Tl 50 
At Ithaca, N. Y 50 
a of ‘esting territories in subsequent nest- a 
Feeding j in felation to nesting territories. 55 
Summary of nesting territories 5d 
Courtship 55-58 
Fightin 
ng 56 
oe a of male and female Larks to each see? - 
Season of nesting 
Explanation of March n ni a 
Weather control of eek and April nests 62 
On ing nests, and the reactions of nest-building 
and egg-laying Te 68 
Nest building ee f 
Seasonal variations in nest Structure een 73 
‘*Pavings”’ nts! | 
Rete A a . 80 
Pe PN 84 
Reactions of female and male Larks during incuba- 
tion period . a 
The young 91-113 
ccpmionin,, Be ee ee tees oe 91 
Feedings . ca BO 
Food of Nestlings. . 96 
Reactions of adult Larks with young in the nest... 97 
SOG LRN ag a 98 
irae oe reactions of young...____._____-. 98 
Wide OE" FOUN 5 99 
Description of young at various ages a 
Cowbird nd bate oe 106 
Protection ... 2 308 
Nest leaving Ener 112 
eee Biot BO 
Ecology of ‘the nesting site of the Prairie Horned 
Lark in 
relation to other breeding birds, at Evanston, Ill.......113-122 
Non-breeding birds of the territory oceupied by the Prairie 
Horned Lark, at Evanston, Ill 122-127 
OMA 128-145 
elemon oe 
Ribograrhy ss 146-153 
ex 54 
