...
—But for the protection that has been provided for it by the ornithologists of Massachusetts, and particularly Dr... 
William T. Hornaday 「Our Vanishing Wild Life」
...To ornithologists this parrot is interesting on accountof its rarity...
W. H. Hudson 「Birds and Man」
...Candour would compelme to add that the author of the monograph inquestion, who is one of the first living ornithologists,is inclined to believe that some swallows in somecircumstances do hibernate...
W. H. Hudson 「Birds and Man」
...It is not in the costly work of Le Vaillant, and indeed seems (from its excessive rarity) to have escaped the notice of all modern ornithologists...
William Swainson 「Zoological Illustrations, Volume I」
...The same bird appears, however, more frequent in Cayenne, according to the older ornithologists...
William Swainson 「Zoological Illustrations, Volume II」
...Most ornithologists agreethat some of the passerine families of current classifications areartificial groups...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Beecher (1951b:280) points out that "the richmondenine finchesarise so uninterruptedly out of the tanagers that ornithologists havehad to draw the dividing line between the two groups arbitrarily...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...
There seems to be but little argument among ornithologists thaticterids, fringillids, and ploceids constitute families which are distinctfrom one another...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Most ornithologists are aware that, within the Order Passeriformes,patterns of musculature in the leg have evolved at a slowrate and exhibit little variation within the Order...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...The second is applied to specimens of birds by ornithologists whoclassify them...
Frank M. Chapman 「Color Key to North American Birds」
...In the middle of December oneof our Cambridge ornithologists went to Cape Cod on purpose to findthem...
Bradford Torrey 「The Foot-path Way」
...The descriptions of the calls of the nocturnal birds of preygiven by India ornithologists are notoriously unsatisfactory...
Douglas Dewar 「A Bird Calendar for Northern India」
...Selbyand modern ornithologists have preserved the Iceland name inHarolda...
Rev. C. A. Johns 「British Birds in their Haunts」
...Because its unique geographical location and ecological setting supports a rich and varied avifauna, the Yucatán Peninsula has received considerable attention by ornithologists...
Erwin E. Klaas 「Summer Birds From the Yucatan Peninsula」
...Theydescribe an infinity of methods practised by others, and comparethem to their own, which, without doubt, are preferable, but tooslow to satisfy the impatience of ornithologists...
Montagu Browne 「Practical Taxidermy」
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