egageicesth period 84-88, 139 
y of male during. 
ue of male and female during.....86, 87, 88-91, 139-140 
Introduction 1-2 
Killdeer 115 
Kingbird 124 
Lark, Horned 124-125 
Prairie Horned 
associates in fall and winter 80-81, 130 
Brooding XXII 
eall notes 33, 130 
coloration, concealing XXXIII, XXXIV 
female, approaching nest see. ©. 419 5 2 
incubating — 93 
reaction, protect 90 
relation of peers tanks wo 48-49, 133 
relation to nesting teYPritOry..ccccmencnnnnnen 135 
Fighting 56, 135 
flight ts 33-34, 130 
29, 129-130 
food, in ae winter and early spring... 31-33, 130 
of nestlin ngs __.96-97 
95-105, 101, 103, 104, 106, 108, 109, XXX, XXXI 
habita 29-30, 130 
binpne in April me 4S 
in autumn and in winter 29- 34, 129-130 
male, at fendile 3 eee I 
day’ s activity, during incubating period... 92 
in care of sous “ es > bee 6.6 = * 
relation of singing to incubating female. “48-49, 133 
nightly quarters 31 
reactions, during incubation period...........88- 91, “139-140 
nest-protective, of incubating female. “a 90 
of adults with young in the nest 97, 140-141 
of nest: building, egg-laying Larks.....68-71, 137-138 
to each othe 56-58, 135 
to man, when eggs were in the nest.......-86, 87 
when young were in the nest.....---87, 88 
AEE ee a ee Ii, IV 
r 
Prairie Horned—Continued : 
Whiter, aetivities oo It, 1% 
isis : ae 
pongepar: Teplen oo 126-121 
Loxia curvirostra minor ae 
