ie een UU BlOoNa Be UL Ie We LN 11 
Perhaps the most significant fact to be gained from these statistics is that 
the hawthorn is the most popular perching site with each species. Also, the 
Iowa crab is popular with all species except the Song Sparrow, which seems 
to be the only bird of the group to frequent telephone wires. Shrubs and 
small trees dominate in the statistics, with remarkably few records from 
tall trees. The almost complete absence of evergreens as perching sites is 
also notable. The following table gives the seasonal occurrence of each 
species, with the year being broken up into 24 divisions. 
Jan. Feb. Mar. Apr. May dune July Aug. Sep. Oct. Nov. Dec. ‘Time 
Slate-colored 24 24 40 95 6 O (0) 6) 1 56 On Sul 1-15 
Junco Gy 5a 103 (es (0) O 0) 0) Sal Gil 46 35 16-end 
Field 0 0 0 10 35 10 1L9/ 9 3 A 0 0 1-15 
Sparrow 0) 0 0) 46 28 4 7 Dee 11 5 0 0 16-end 
Fox O 0) il 42 O 0) 0) 0) 0) 6 Lal O 1-15 
Sparrow @) 0 Tye 5 O 0) 0) (0) (0) 14 0) 2 16-end 
Song 2 O 9g 42 Pape 14 16 Za 2 4 4 O i ea les) 
Sparrow 0 0) 34 34 2a 15 34. 13 3 6 1 3 16-end 
Tree 19 0) 23 2 0) O 0) 0) 0 0) 18 185) 1-15 
Sparrow 0) 16 ILES » 0) 0) 0) 0 0) 6 21 16 16-end 
White-throated 0 0) 0) 0) AT. O 0) 0) 0) 53 6 0) 1-15 
Sparrow (0) 0) 0 25 4 0) 0) 0) 52 15 1 0) 16-end 
These data graphically confirm facts well known to the serious students of 
local birdlife: namely, the winter occurrence of the Junco and Tree Spar- 
row, the summer occurrence of the Field and Song Sparrows, and the near- 
ly absolute migratory status of the Fox and White-throated Sparrows. 
Interesting sidelights on the above include the following observations. 
The last Junco apparently departs later in spring and the first one arrives 
earlier in the autumn than in the case of its associate, the Tree Sparrow. 
The Song Sparrow has more stragglers in the colder months than the Field 
Sparrow. The migration peak of the Fox Sparrow appears to be a month 
earlier than the White-Throated Sparrow in spring, and a month later in 
autumn. It would be interesting to determine if this means, in comparison 
with the White-throated Sparrow, a longer summer nesting season and a 
shorter wintering season for the Fox Sparrow. The Slate-colored Junco ap- 
parently has supplementary migration peaks in addition to the birds which 
are winter residents, as evidenced by the fact that the figures for March, 
April, October, and November are considerably higher than those for De- 
cember, January, and February. 
Bow 31, Willow Springs, Til. 
fi fl ml 
Park Ridge Audubon Society Meeting 
THE AUDUBON SoclETY of Park Ridge announces their spring banquet on 
May 26, 1960, at 6:30 p.m. in the West Park Field House at Western and 
Garden streets. Dr. Donald T. Ries of Illinois State Normal University will 
present a lecture illustrated with color slides, and Mrs. Pauline Esdale 
will give a program of bird song imitations. Buffet supper. Tickets are 
$3.50 per person, obtainable in advance from Mrs. Lester Stolte, 1600 Al- 
bion St., Park Ridge, Illinois. 
