Letter | Published:

Positions of Birds' Nests in Hedges

Nature volume 82, pages 279280 (06 January 1910) | Download Citation

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Abstract

LIEUT.-COLONEL TULL WALSH'S observations as to the positions of nests (NATURE, December 16) are interesting, as they tally with the aspect of arboreal cryptogams, as already noted by me. South-west winds depositing sulphurous and nitrous products to leeward of towns cause lichens and mosses to flourish best on the eastern side of trees and hedges; and, moreover, this is general, for winds bearing spores from the south-west continually play on the trunks and blow away spores as they settle. If it were not for a kind of capillary attraction or rotary motion drawing the spores round the trunk to leeward, or east or north-east, they would never germinate. So the eastern side is the most productive, though often the western aspect may exhibit a greater abundance of species, though less well developed, from the continuous play of spores—and rain—upon the trunk.

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Affiliations

  1. Leicester Corporation Museum, December 22.

    • A. R. HORWOOD

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DOI

https://doi.org/10.1038/082279e0

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