Reproduction 83 
; ee 
3 Se 
<a wae “protecti ‘elod 
i, wnt — — 
j WN gras 
a \ ) \ 
r ; fie en oe thrown up AN \ wa 
me from the excavation 
~---— the excavation 
The Nest-excavation in Cross-section 
“7 firat items /of 
’ “paving 
- 
a 
2 
Completed Nest and "Paving” 
Fig. 10. The construction of the nest of the Prairie Horned Lark, 
with an explanation of “pavings”. 
