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This is one of the great routes for the migrationofbirds.
2
And the dispersion and migrationofbirds and quadrupeds are thus confined to general boundaries.
3
Another argument in favour of this basin is the migrationofbirds to the northward at certain seasons.
4
Their annual descent of the river resembles the migrationofbirds, and we invariably find those of a feather flocking together.
5
In 1823 he presented a paper to the Royal Society on the migrationofbirds, a subject not even yet fully cleared up.
6
The contributors write with flair about the fluctuations of the countryside, the migrationofbirds, or a particular aspect of the outdoors that interests them.
7
The present manual suggests compositions based upon "changes in trees, dissemination of seeds, migrationofbirds, snow, ice, clouds, trees, leaves, and flowers."