120 Trans. Acad. Sci. of St. Louis 
If the Ithaca nest is indicative of the ecological habitat then 
the Savannah Sparrow is fourth in the series from the Prairie 
Horned Lark to the Dicksissel, from the bird breeding in the 
scantiest vegetation to the bird of the heaviest: (1) Prairie 
Horned Lark, (2) Vesper Sparrow, (3) Meadowlark, (4) 
Savannah Sparrow, (5) the Bobolink, (6) Dicksissel. 
Ammodramus savannarum australis. Grasshopper Sparrow. 
A single individual sang on the Main Subdivision April 28, 1926; 
none from that date to May 8; none again until June 1, but the 
Sparrow was noted regularly from this last date until the maxi- 
mum number of singing males seemed to be reached on June 13. 
From that date to July 21 they were noted daily and in song. 
The mid-June census showed twelve breeding pairs on the Main 
Subdivision. 
It may be of interest to note here that these birds have two 
distinct songs: (1) the “click-ik, z-z-z-z-e-e-e-e-’’? described by 
most writers and (2) a ‘‘click-ik, zeah, uhah, zeah, uhah, zeah, 
uhah,’’ or ‘‘click-ik, z-z-z-zwea, Z-Z-7-ZWea, Z-Z-Z-ZWea, buzzing 
and insect-like as the first but interrupted and undulating, to- 
tally distinct from the song ordinarily described. To say ‘‘life’s 
a rigmarole, rigmarole, rigmarole’’ with all the buzz at one’s 
command gives a good notion of the quality of the song. It 
seemed to be given more frequently in the evening, the first more 
frequently during the middle of the day. That it is not a 
peculiarity of northern Illinois Grasshopper Sparrows is shown 
by the fact that an Ithaca, New York, bird knew it also. 
Since no nests were located the ecological habitat cannot be 
definitely assigned. But the birds were found in conditions 
similar to those occupied by the Savannah Sparrow, viz., 
and heavy grasses such as Agropyron repens and Agrostis 
palustris. 
Spiza americana. Dicksissel. This, the last resident to arrive 
on the subdivision, was noted first May 29, 1926. The first songs 
were noted May 31, and from that time to the last of July its 
presence could not be overlooked. The maximum number of 
singing males was reached June 10. No definite effort was made 
to locate nests but the birds persisted in the taller, ranker growth 
of the area, especially wherever white sweet clover (Melilotus 
alba), the canada thistle (Cirsium arvense) and wild lettuce 
(Lactuca sp.) abounded. The Dicksissel will nest in meadows 
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