[60]Farmers’ Bulletin 630, U. S. Dept. of Agriculture, Biological Survey.
[61]From “Birds of Eastern North America,” by Frank M. Chapman.
[62]Farmers’ Bulletin 630, U. S. Department of Agriculture, Biological Survey.
[63]Farmers’ Bulletin 630, U. S. Department of Agriculture, Biological Survey.
[64]Farmers’ Bulletin 630, U. S. Department of Agriculture, Biological Survey.
[65]“Useful Birds and Their Protection,” by E. H. Forbush, page 320.
[66]From Educational Leaflet No. 3, National Association of Audubon Societies.
[67]Farmers’ Bulletin 755, Biological Survey, U. S. Department of Agriculture.
[68]Written by Coleridge about the European skylark, but applicable to our meadowlark.
[69]Farmers’ Bulletin 630 and 755, U. S. Department of Agriculture, Biological Survey.