In some birds, such as the herons, certain down-feathers or plumulae break off into a fine dust as fast as they are formed and form tracts defined in size and situation and known as "powder-down patches." [Please select]
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Comparative breeding behavior of four species of North American herons. [Please select]
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A pair of snowy herons flapped tamely about among the pines. [Please select]
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Discontented, unfailing in her melancholy reminiscences of cannibalistic snakes and herons. [Please select]
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Egrets, night-herons, cormorants, darters, paddy-birds, openbills, and spoonbills build stick nests in trees. [Please select]
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The snowy herons are killed exactly as I describe. [Please select]
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In a large cage in this pond, I raised some snowy herons. [Please select]
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