The effect of organic farming regimes on breeding and winter bird populations - Part lV. Invertebrate and weed seed food-sources for birds in organic and conventional farming systems
Author(s): Brooks, D., Bater, J., Jones, H. & Shah, P.A.
Published: January 1995 Issue No.: 154 Pages: 104pp
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One bird, twelve journeys, 60 000 miles and invaluable scientific data: PJ the Cuckoo has left an incredible legacy.