You are here: Home / Measurements / Terrestrial / Vertebrates / Birds / Note 3: BTO bird activity map symbols

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

APRIL

In April we start carrying out almost all the ECN measurements, though the weather is not always kind! At freshwater sites we sample diatoms and invertebrates.

See all this month's field measurements...

Moor House
[Photo © CEH]