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July, 1919 NESTING HAUNT O1? THE MERRILL SONG SPARROW 149 pressure to tilt some of them on one side, and it is a wonder sometimes how the four or five young manage to keep right side up. (See fig. 27.) These nests are composed almost entirely of the dead blades and eulms of the sedge grow- Fig. 29. NESTINO SITE OF MERRILL SONG (?'I-IERE MARKED B'ITH B?HITE CROSS). TOOl?APHED JUNE 15, 1918. SPARRO? r IN CLUMP OF SEDGE VIEW TO?'AR!)S THE EAST; PHO- ing about the nesting site and are lined with a few fine dry grasses and home- hair brought from a distance. While a great many song birds depend on foli- age of some kind for concealment of their nests, the Merrill Song Sparrow
