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Birds

 Subject
Subject Source: Library of Congress Subject Headings

Found in 1 Collection or Record:

Collection

Additional papers of the British Trust for Ornithology (BTO)

Additional papers of the British Trust for Ornithology relating to the BTO/EGI Rookery Census
Extents: 3.33 Linear metres (22 physical shelfmarks)
Dates: 1928-1959