Reproduction 4] 
on two or three very early morning trips to the breeding areas 
showed that most of the other residents preceded the Lark in 
Song, apparently because the day must be started with a flight 
song and for this some light is necessary. Thus the Purple 
Martins on June 16, 1925, were chattering in the air by 3:20 
A. M., a full-throated Robin song at 3:30; a Song Sparrow at 
3:55; then the songs of Meadowlark, Diesissel, Bobolink, Grass- 
hopper and Savannah Sparrows before, at 4:00 A. M., the first 
Prairie Horned Lark rose in flight song. But even then he was 
invisible because of the poor light and he had beat the Bobolinks 
into the air. 
The following notes, made in the field, about mid-June, 1926, 
at Evanston, are indicative of the manner of the close of songs 
in the evening: 
7:19 P. M. Sun has set. 
7:20 P. M. The sun, from below the horizon, glints upon a 
Lark in high flight song. 
7:35 P. M. Larks are still chasing each other boisterously 
Over the meadow, calling and singing short ditties from the 
ground. 
7:51 P. M. Larks are now in song over all the meadow but 
I believe none are flight songs; too dark to be positive. 
7:56 P. M. Evening star is visible just above the point where 
the sun has set. A coolness pervades the air. 
8:00 P. M. Several Larks and a Grasshopper Sparrow are 
still in song. ie 
8:04 P. M. Many stars visible. Two Larks are still singing. 
At 8:10 P. M. The last song note was heard and that after 
a hush had fallen upon the jubilant meadow. That last note was 
the drowsy ‘‘pit-wit, wee, wee-pit’’, of the Prairie Horned Lark. 
On rare oceasions a Grasshopper Sparrow might start up from 
the beginning of slumber to give his insect trill after the Larks 
had ceased but the grand finale of the evening chorus belonged 
to the Larks beyond question, both at Evanston and at cenaen. 
Descriptions of song—The flight song of Otocoris alpestris 
praticola is a true Lark song and in its method of delivery, at 
least, has several points in common with that of the Skylark of 
Europe. It is such an astounding exhibition on the whole, that 
it is surprising that more extensive deseriptions are not to be 
found in the literature. The songs from the ground too, are 
