. Birds of Massachusetts and other New England states. Birds; Birds. Length Method of measuring length, folded wing and tarsus. The bird should be extended full length upon the back, without stretching, upon the ruler or steel tape. The wing measurement may be taken by pressing the wing flat upon a ruler, or by measuring along the outer surface of wing with a steel tape measure. The spread is taken by spreading the wings to full extent upon a flat surface, placing a mark at the tip of each wing and then measuring the distance. For reasons readily seen in practice this measure- ment is not very
. Birds of Massachusetts and other New England states. Birds; Birds. Length Method of measuring length, folded wing and tarsus. The bird should be extended full length upon the back, without stretching, upon the ruler or steel tape. The wing measurement may be taken by pressing the wing flat upon a ruler, or by measuring along the outer surface of wing with a steel tape measure. The spread is taken by spreading the wings to full extent upon a flat surface, placing a mark at the tip of each wing and then measuring the distance. For reasons readily seen in practice this measure- ment is not very Bill Method of measuring the bill from its tip to the feathers of the forehead. This is the length of the bill (the chord of the culmen or ridge). All bills of specimens treated in this volume are so measured unless it is otherwise stated under the measurements of a species. Some ornithologists measure bills with a tape carried along the culmen or ridge. In birds with hooked bills this method considerably increases the 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 Forbush, Edward Howe, 1858-1929; Massachusetts. Dept. of Agriculture. [Norwood, Ma. : Printed by Berwick and Smith Company]
Size: 1736px × 1439px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorforb, bookcentury1900, bookdecade1920, booksubjectbirds
