...The consumption of grasshoppers closely followed thecurve of their availability, since they are a preferred food of thecrow... 
Dwight Platt 「Food of the Crow, Corvus brachyrhynchos Brehm, in South-central Kansas」
...Although it has food preferences, the crow is euryphagous, and its dietis governed to a large extent by the availability of various types offood in its habitat...
Dwight Platt 「Food of the Crow, Corvus brachyrhynchos Brehm, in South-central Kansas」
...Apparently, the availability ofthese foods is one of the major factors affecting the distribution ofP...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...The availability of additional material and the new informationpertaining to osteology permit an amplification of Gaige's (1926)description...
John D. Lynch 「Systematic Status of a South American Frog, Allophryne ruthveni Gaige」
...In Hume's case, therewas no ill-founded conclusion of the availability of thefreshly-discovered district...
Ernest Favenc 「The Explorers of Australia and their Life-work」
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