...They havethe plumes only during the mating and nesting season...
William T. Hornaday 「Our Vanishing Wild Life」
...The mating season commences about the last week in February and ends about the middle of March...
Elmer Harry Kreps 「Science of Trapping」
...If a female mink can be caught, during the mating season, remove the generative organs, and place them in a bottle, adding about two ounces of fish oil and all of the mink musk you can get...
Elmer Harry Kreps 「Science of Trapping」
...It is well, therefore, in makingthe mating to select breeders with good lengthof body...
Harry M. Lamon 「Ducks and Geese」
...In making the mating, size is important andbreeders should be selected which are up to standardweights if possible...
Harry M. Lamon 「Ducks and Geese」
...Considerations in Making the Mating...
Harry M. Lamon 「Ducks and Geese」
... For a more detailed description of the principles of breedingas applied to poultry and which is equally applicable togeese, the reader is referred to "The Mating and Breeding ofPoultry" by Harry M...
Harry M. Lamon 「Ducks and Geese」
...Thesebirds breed very true in type and color and progressin the mating simply consists of continuing to selectthose birds for breeders which show markings in thegreatest excellence...
Harry M. Lamon 「Ducks and Geese」
...It is, of course, necessary toknow the sex so as to provide the proper number ofganders and so as to know what birds to pen togetherin making a mating...
Harry M. Lamon 「Ducks and Geese」
...By means of retaining sperm successive broods possibly are produced after only one mating...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Again, in early spring during the mating season, themales travel considerably...
A. R. Harding 「Fur Farming」
...They have taken the chancevariations in form and habit and endeavored to extend these sports ofnature by a careful system of mating those in which the singularfeatures were most evident...
Nathaniel Southgate Shaler 「Domesticated Animals」
...Theobject of mating them before they are fully mature is to prevent themfrom selecting for themselves partners contrary to the ideas of thebreeder...
John H. Robinson 「Our Domestic Birds」
...It was Unekepesim, the Mating Moon, the Home-buildingMoon—and Baree was going home...
James Oliver Curwood 「Baree, Son of Kazan」
...There is probably no gallantry among the birds except at the mating season...
John Burroughs 「Birds and Bees, Sharp Eyes and, Other Papers」
...A forced mating is made by using a mating pen...
Carl Dare 「Profitable Squab Breeding」
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