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Note 3: BTO bird activity map symbols

Additional information relating to the ECN birds protocol

PDF document icon BTO3.pdf — PDF document, 12 KB (12766 bytes)


Our field activities


Now that autumn has arrived the ECN fieldwork calendar begins to quieten down. We cease monitoring most terrestrial invertebrates apart from spiders. In rivers and lakes we make the last freshwater invertebrate survey of the year.

See all this month's field measurements...

Wytham in the autumn (fall). Photo: Denise Pallett