12 Tue Witson BuLretin, No. 74. 
The sand strand that was under observation formed the 
east bank of Quiver Lake and parts of the shore of Lake Ma- 
tanzas. It was not extensiv in area, even tho it was developt 
linearly for quite a distance. It did not support much of a 
bird population, altho along it there was an abundance of food 
materials, consisting largely of fish, insects, clams, snails, and 
plants, left on the beach by the slowly subsiding river. The 
summer bird population did not contain a single species typ- 
ical of this bird association. The birds noted were mostly 
birds coming to the shore to bathe. Toward the end of July 
the fall migration set in with the inroad of various kinds of 
sandpipers. This increase was added to the bird life of the 
strand and made it seem more natural. Following each north 
wind the sandpipers began to appear singly and in small 
flocks all along the river. These flocks continually workt 
southward. Most of the flocks kept at such a distance that 
specific determination was well nigh impossible. Those iden- 
tified were, for the most part, solitary, spotted, pectoral and 
semipalmated sandpipers and the killdeer plover. 
There was a much greater expanse of mud strand, which is 
submerged during the high waters of spring. When emerged 
it occurs as mud flats or as muddy strips within the willows. 
As it is not exposed during the time of the spring migration 
of mud strand birds, its avian population is very small in 
comparison with what it might otherwise hay been. As not 
many of the mud strand birds range this far south during the 
summer, the population is further reduced. However, there 
are a few typical species each represented by a few individ- 
uals. As in the case with the sand strand, the mud strand 
bird population is largest during the migrations, which is out- 
side of the scope of this article. 
SUMMMER Birps or THE SAND STRAND. 
d Green Teron 1m ab occasional 
d Phoebe f bathing not uncommon 
s Bronzed Grackle bathing common 
s Robin bathing fairly common 
