Screech Owl 
charge, despite their slow advances. There was something 
very impressive in their orderly and deliberate sweep 
across the glowing sky — a deep earnestness of purpose 
and untold reserve energy and determination in the mien 
of that dusky squadron with its broad front and evenly spaced 
double ranks. 
[just as the moon was rising a Screech Owl began 
wailing on the further side of the river opposite my cabin. 
As nearly as I could judge, the bird was somewhere in the 
marsh, probably perched on some stake leftty fishermen or 
haymakers.'*"} 
Great 
bird-wave 
moves on 
at nightfall 
Directly night had fairly fallen, the air became 
filled with small migrating birds whose lisping and chirping 
calls to one another were practically incessant. At first 
I heard only the notes of Warblers, and perhaps Sparrows also, 
but after 10 o’clock the cries of Thrushes were numerous and 
frequent. There was no abatement of these sounds up to the 
I 
time I went to sleep but late in the night/awoke repeatedly 
and listened in vain for any bird voices. T hese facts, taken 
in connection with my experience next day, indicate clearly 
enough that the big bird-wave which descended on this region 
this morning resumed its onward sweep to-night as soon as 
the light had faded from the west and that it was not followed 
by any considerable movement. It v<ras certainly an unusually 
well-defined and extensive "rush" for its passage to-night 
