July, 1912 
117 
NOTES OX THE W'ADIXG 1U1H3S 01<' THE HARR LAKE RIiGIOX, 
COLORADO 
Hy ROI5ERT B. ROCKWELL 
WITH THIRTKEN PHOTOS BY THE AUTHOR 
T he previous papers relating to the liird-life of the Harr Lake region, 
which have appeared in The Condor, have dealt with species which, either 
through their relative abundance or through the ease with which their 
nests were located, have made possible a more or less connected account of their 
l)reeding habits. The species mentioned in this paper are on the other hand species 
which breed in such limited numbers, or whose nesting habits var_v so little as to 
Fig. 44. TYPICAE NEST AND EGGS OF BITTERN 
make an extended study of these habits either impossilile or .so little removed 
from the ordinary as to be unworthy of publication.* It will therefore be the 
purpose of this paper as far as is practicable to lay before tbe reader ( even at the 
risk of a disconnected recital) only those facts which throw new light upon the 
habits of this very interesting class of birds. .Vs an aid to easy reference it is 
l)robably best to treat each species separately in the order of the A. O. U. nomen- 
clature. 
Botaurus lentiginosus. American Hittern. 
Hitteims were among the commonest birds around all the rush-bound ponds, 
but owing to their retiring habits they were seldom seen c.xcept when Hushed, 
and as they were close sitters fewer nests were found than the relative abundance 
*An the notes upon which this paper iw based were taken in company with T,. .T. Hersey. 
