--I am engaged in investigating t h e ringing records of Blue Tits. Amongst the known causes of death it is astonishing to find that the mousetrap is a principal one. I t may be necessary to place r a t and mouse traps in gardens, b u t I suggest that they should be placed under a tunnel of stones or bricks. Tunnel traps are more effective for vermin and they protect such valuable garden birds as ...

Stay at the forefront of British birding by taking out a subscription to British Birds.

Subscribe Now