...The whydahs arebusy pairing... 
David Livingstone 「The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873」
...In wild land birdsthe pairing habit is not of advantage to a species, but still thetendency to single matings is very strong...
John H. Robinson 「Our Domestic Birds」
...From the time that a young broodleaves the nest until the next pairing season, father, mother, andchildren keep together in irreproachable harmony...
Rev. C. A. Johns 「British Birds in their Haunts」
...Duringthe pairing season, his delight oftenbecomes rapturous...
Various 「Birds Illustrated by Colour Photography, Vol II. No. 4, October, 1897」
...254) are now pairing, and fly in the hot sun about trees...
Alpheus Spring Packard 「Our Common Insects」
...After pairing, the female lays her eggs among the silk of the cocoon,partly covering them with hairs shed from her body, and then dies...
Geo. H. Carpenter 「The Life-Story of Insects」
...At the moment of the pairing, the illumination becomes much fainter,is almost extinguished; all that remains alight is the humblefairy-lamp of the last segment...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...This explains the presence here, the pairing and theegg-laying of the Sitares whom we but now saw roaming, in the companyof the Anthrax-flies, at the entrance to the galleries of theAnthophoræ...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...In the glass jars in which I kept my Sitares I saw the pairing followvery closely upon the first moments of freedom...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...The pairing, with the creatures placed end to end,lasts nearly an hour...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...Perhaps pairing is here, as we see elsewhere, a secondary matter from which it is possible to abstain, in part, without injuring the prospects of the race...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...The agitation and feverishexcitement means that the great business of pairing is at hand...
J. H. Fabre 「The Wonders of Instinct」
...At the moment of the pairing the illumination becomes much fainter, isalmost extinguished; all that remains alight is the humble fairy-lampof the last segment...
J. H. Fabre 「The Wonders of Instinct」
...This the quadrupedsdo not do; there is no period of courtshipamong them, and no mating or pairing as among thebirds...
John Burroughs 「Ways of Nature」
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