. Cassinia. Ornithology; Ornithology; Ornithology. 16 PROCEEDINGS OF THE Investigation along a line of flight leading to North Wood- bury, N. J., showed that the birds passed through three distinct stages of flocking. From the accompanying plan of the roost the movements of the Grackles can be easily traced. P. G. Primary gathering at Collingswood, six miles from K. S. G. Secondary gathering at Westville, one mile from R. F. G. Final gathering, 100 yards from R. E. Eoost at North Woodbury. S. E. Eoost occupied by Grackles, about Oct. 1, one mile from R. ///. GENEEAL PLAN OF GEACKLE EOOSTS, NOR
. Cassinia. Ornithology; Ornithology; Ornithology. 16 PROCEEDINGS OF THE Investigation along a line of flight leading to North Wood- bury, N. J., showed that the birds passed through three distinct stages of flocking. From the accompanying plan of the roost the movements of the Grackles can be easily traced. P. G. Primary gathering at Collingswood, six miles from K. S. G. Secondary gathering at Westville, one mile from R. F. G. Final gathering, 100 yards from R. E. Eoost at North Woodbury. S. E. Eoost occupied by Grackles, about Oct. 1, one mile from R. ///. GENEEAL PLAN OF GEACKLE EOOSTS, NORTH WOODBUET, N. J. Showing formation of one line of flight. At 5 p. m., August 8th, a small flock was located feeding near Newton Lake, Collingswood (P. G.). At they flew to nearby trees, and after a short concert took wing, flying south- west. This line was followed as opportunity presented. On August 15th, at a point three miles southwest of P. G., about. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Delaware Valley Ornithological Club. Philadelphia : Delaware Valley Ornithological Club
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectornitho, bookyear1901
