Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0201clau Year: 1884 262 AYES. The stiff, beautifully coloured plumage lies smoothly on the body, and presents hardly any difference in the two sexes. The short legs are unfitted for rapid and constant locomotion. The feet are cloven () or ambulatory (j). ambulatorii), and the well-developed hind toe rests on the ground. The Columbince have a paired crop, which at the breeding season in both sexes secretes a creamy fluid for the nourishment of the young. They are distributed over all parts of the worl
Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0201clau Year: 1884 262 AYES. The stiff, beautifully coloured plumage lies smoothly on the body, and presents hardly any difference in the two sexes. The short legs are unfitted for rapid and constant locomotion. The feet are cloven () or ambulatory (j). ambulatorii), and the well-developed hind toe rests on the ground. The Columbince have a paired crop, which at the breeding season in both sexes secretes a creamy fluid for the nourishment of the young. They are distributed over all parts of the world. They live in pairs or in flocks in forests, and feed almost exclusively on grain and seeds. The species which live in the north are migratory (Zugvogel); others make short migration (Strichvogel), while others are resident birds. They live in a state of monogamy, and lay two, rarely three, eggs in a rudely-constructed nest. Both Fn;. lii-'n (after Naumaun). sexes take part in hatching and bringing up the young. The young- leave the egg almost entirely naked, with closed eyelids, and, as altrices, require the care of the mother for a considerable time. Fam. Columbidae. The beak, with smooth edges, never dentated. Tii-iii, L., Rock-Dove (tig. 662). Slate-blue, with white wing-coverts and two black bands 011 the wings and tail. It is the ancestral form of the numerous races of domestic pigeon. It nests on rocks and ruins, and is dis- tributed from the coasts of the Mediterranean over a great part of Europe and Asia. C. (Palumlxxna*) tenets L., Stock-Dove ; Palu-mbu* ioi-ijiuitux. Leach. Ring-dove ; Ectopistcs wit/rnfuri/'x Passenger Pigeon, North America ; Titrtitr (iiirifii* Bp., Turtle-Dove; T. nsorius S\vs. ; Goura cortmata. Flem., New Guinea. Fam. Didunculidae. Beak compressed, lower jaw dentated, with hooked extremity. Di(lnm->ilnx xtri'i'n-Kxtrls Gould, Samoa Islands.
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