How to get involved
f you find a colony of nesting Grey Herons or other waterbirds and suspect it may not be known to the Heronries Census, please report it to us – or make a general enquiry – at herons@bto.org.. Once registered for this survey and allocated one or more heronries to count, you can input, view and edit your Heronries Census data online. – or continue to use Heronries Census cards to submit your data