. British birds with their nests and eggs. Birds; Birds. The Linnet. Si what one notices between the sexes of many butterflies. The different form of the wing in the sexes of birds appears rarely to be noted, the mere length being recorded. The radius and ulna in the male are longer and the depression in front of their junction with the humerus deeper than in the female, the primary coverts are less exposed in the male, whilst the second, third, and fourth primaries are emarginate in front, in the male; but only the second and third, in the female; in the latter sex the primaries are more perf
. British birds with their nests and eggs. Birds; Birds. The Linnet. Si what one notices between the sexes of many butterflies. The different form of the wing in the sexes of birds appears rarely to be noted, the mere length being recorded. The radius and ulna in the male are longer and the depression in front of their junction with the humerus deeper than in the female, the primary coverts are less exposed in the male, whilst the second, third, and fourth primaries are emarginate in front, in the male; but only the second and third, in the female; in the latter sex the primaries are more perfectly graded, whereas in the male the outer edge forms a slight sinus; the tail differs much in outline, as will be at once seen from the offt^. 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 Butler, Arthur G. (Arthur Gardiner), 1844-1925; Frohawk, Frederick William, 1861-1946. London, Brumby & Clarke
Size: 1295px × 1930px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1896
