. Report on the birds of Pennsylvania : with special reference to the food habits, based on over four thousand stomach examinations. Birds. 312 BIRDS OF PENNSYLVANIA. Plate 77. extensive swampy places. This species is quite shy and owing to the fact that these birds frequent the thick grasses, rushes and rank weeds m, often almost impenetrable swamps, they frequently escape notice. I am inclined to think the Short-billed Marsh Wren is more plentiful and gen- erally distributed, in suitable localities, throughout the state than it is usually supposed to be by naturalists and collectors. Concern


. Report on the birds of Pennsylvania : with special reference to the food habits, based on over four thousand stomach examinations. Birds. 312 BIRDS OF PENNSYLVANIA. Plate 77. extensive swampy places. This species is quite shy and owing to the fact that these birds frequent the thick grasses, rushes and rank weeds m, often almost impenetrable swamps, they frequently escape notice. I am inclined to think the Short-billed Marsh Wren is more plentiful and gen- erally distributed, in suitable localities, throughout the state than it is usually supposed to be by naturalists and collectors. Concerning this species Dr. John W. DetwiUer, of Bethlehem, writes me as fol- lows: " Mr. John Mack brought me a nest, which he found below Qua- kertown, Bucks county, while hunting Woodcock. The nest was newly constructed, but contained neither eggs or young. Lat(?r I found a nest with fresh eggs, in the month of July, on Chain Dam island, Lehigh ; I have observed this wren as a summer resident in Chester and Delaware counties; it breeds regularly, according to Dr. A. C. Treichler, in Lan- caster; Mr. Sennett has never observed it in Erie county, but Mr. H. C. Kirkpatrick, of Meadville, informs me it is a summer resident in the low swamps and marshes in Crawford county. It is not reported as occur- ring in any of our mountainous districts. This species arrives here about the last week in April, and remains until about the 1st of October. Food of seven of these wrens examined by the writer consisted of bee- tles and spiders. Cistothorus palustris (Wils.)- Loii^-billcd. Marsh Wr«*n. Description. Bill about as long as head ; maxilla blackish ; mandible blackish toward end, but paler at base; legs pale brown (in dried specimens dark brown); eyes dark brown ; length 5^ or a little over ; extent nearly 7 inches. Above dull brown, a lit- tle brighter on rump; crown and space on back nearly black ; pileum is divided by a faint brownish median stripe; interscapular region and


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