Volunteers are needed for this years (and future) BTO heronry census.
With the continued, unexplained, decline in breeding Grey Herons across UK and the expansion of breeding Little Egret (together with the potential for other rarer herons/egrets to become established here), the long running BTO heronry census is more important than ever. The survey methodology is straightforward and requires a maximum of a few hours total survey time.
I have just updated vacant sites on the BTO map viewer - areas with sites currently 'unclaimed' shown in brown. Map can be accessed at - https://app.bto.org/colonies/public/vacant-sites.jsp
Please get in touch via the map - click on any vacant square and a brief form pops up - fill this in and I will get an alert with your details + area of interest from BTO.
Lots more info on this survey programme at
Ian Enlander
BTO NI heronries census coordinator
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