...Whether it is a fine singer or not within the tropics I am unable to say,its vocal powers having received no attention from the naturalists whohave observed it... 
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...Glot' tis, the opening between the vocal cords, or the mouth of the windpipe...
Worrallo Whitney 「A Guide for the Study of Animals」
...The yellow-breasted chat has remarkable vocal ability, but heis not a real musician like the mockingbird, who also likes to havefun with his voice...
Neltje Blanchan 「Birds Every Child Should Know」
...A pairof lateral vocal sacs behind the angles of the jaws and the well-developeddermal glands were used by Duellman (1956) to distinguishPhrynohyas from Hyla...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Distress calls are known in several species of Rana and in Leptodactyluspentadactylus; such calls result from the rapid expulsion of air overthe vocal cords and with the mouth open...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Elbow deep in the placid waters of the lake floundered another womanalmost as wonderfully attired as the first, and quite as vocal...
Albert Payson Terhune 「Further Adventures of Lad」
..." Some people acquainted with the habits of swans declare that theswan is more vocal when dying than at any other time in its life...
John H. Robinson 「Our Domestic Birds」
... On my second day at the village it happened to be raining--a warm, mizzling rain without wind--ind the nightingales were as vocal as in fine bright weather...
W. H. Hudson 「Birds in Town and Village」
... if cocks were selected for their vocal qualities...
W. H. Hudson 「Birds in Town and Village」
...Thus, whetherhunting on his own account or on behalf of his mate and nestlings, hisemployment is unvaried, and the same amount of time is alwaysat his disposal for exercising his vocal powers...
Rev. C. A. Johns 「British Birds in their Haunts」
...To display his versatility, he gives adull performance which couples the‘go-back’ of the Guinea fowl with theplaint of the Wood-pewee, two widelydiverse vocal sounds...
Various 「Birds Illustrated by Color Photography [June, 1897]」
..."We talk and think of birds as essentially musical and mimetic, or at least vocal and noisy creatures; and yet we seem to think that although they have an ear, they have no ears...
John Ruskin 「Love's Meinie」
...In breeding males the vocal sac is orange tan...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
ランダム例文：
便利！手書き漢字入力検索
時事ニュース漢字 📺