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240 pages • first pub 1990 (editions)
ISBN/UID: 9780856610592
Format: Hardcover
Language: English
Publisher: Not specified
Publication date: Not specified
Description
"For many people, watching and studying birds is exclusively a day time activity. However, for many birds twilight and night time are not a barrier to useful activity. It is true that very few birds are exclusively nocturnal, but many birds which ...
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240 pages • first pub 1990 (editions)
ISBN/UID: 9780856610592
Format: Hardcover
Language: English
Publisher: Not specified
Publication date: Not specified
Description
"For many people, watching and studying birds is exclusively a day time activity. However, for many birds twilight and night time are not a barrier to useful activity. It is true that very few birds are exclusively nocturnal, but many birds which ...