"...Mind you, as many of the small birds caught by cats weigh less than an
ounce (Blue Tit - 10-15 grams = one-third to one-half of an ounce), their
output isn't going to reach half an ounce a day. 10-11 gram birds produce
about 0.7-0.9 grams dry weight per day(1)...."


But thy are more than made up for by Blackbirds, Magpies etc.



--
David Hill
Abacus Nurseries
www.abacus-nurseries.co.uk