...There are a great number of different kinds of cuckoos, and most of them select a special host to associate with, and are never found except with that species... 
Edward Saunders 「Wild Bees, Wasps and Ants」
...The cuckoos are elegant in shape, almost devoid of hairs, and most of them are striped with yellow or brown across the body so that they present a wasp-like appearance (, 18)...
Edward Saunders 「Wild Bees, Wasps and Ants」
...the humble bees) we find the cuckoos so like their hosts (, 30, 31) that even entomologists of experience mistake one for the other...
Edward Saunders 「Wild Bees, Wasps and Ants」
...Some fossors are subject to the depredations of cuckoos, just as the solitary bees are, but their cuckoos are rarely of aculeate origin...
Edward Saunders 「Wild Bees, Wasps and Ants」
...The underground species are more subject to the attacks of cuckoos than the carder bees...
Edward Saunders 「Wild Bees, Wasps and Ants」
...The Bronze Cuckoos are very similar...
John Albert Leach 「An Australian Bird Book」
...But happily cuckoos enjoythem as well as the smooth, slippery kind...
Neltje Blanchan 「Birds Every Child Should Know」
...In afew months young cuckoos, hatched as far north as New England andCanada or even Labrador, are strong enough to fly to Central or SouthAmerica to spend the winter...
Neltje Blanchan 「Birds Every Child Should Know」
...The Cuckoos are a group of world-wide distribution, but are morenumerous in the eastern than in the western hemisphere where onlythirty-five of the some one hundred and seventy-five species are found...
Frank M. Chapman 「Color Key to North American Birds」
... same may be said of woodpeckers, cuckoos, warblers, and, in fact, of any species that subsists in a state of nature on a particular kind of animal food...
W. H. Hudson 「Birds in Town and Village」
...It is not possible for anyone of sound hearing to be an hour in ahill station in the early summer without being aware of the presenceof cuckoos...
Douglas Dewar 「Birds of the Indian Hills」
...I therefore do notbelieve that these cuckoos which resemble birds of prey derive anybenefit therefrom...
Douglas Dewar 「Birds of the Indian Hills」
...The third of the cuckoos which enlivens the hot weather in theplains is the Indian cuckoo (Cuculus micropterus)...
Douglas Dewar 「A Bird Calendar for Northern India」
...Wallace thinks it may be an advantage to cuckoos,a rather feeble class of birds, to resemble the hawks,but this seems to me far-fetched...
John Burroughs 「Ways of Nature」
...Two cuckoos and one hedge-sparrowwere hatched in the same nest, and one hedge-sparrow'segg remained unhatched...
Various 「Natural History in Anecdote」
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