THIRTY YEAR FINDING. “The decline of the house sparrow in the UK is a relatively recent phenomenon. From around 13 million pairs in the early 1970s, numbers are now estimated to stand somewhere between 2.1 and 3.7 million: a 71 per cent drop in the national breeding population from 1977 to 2008.”
https://lnkd.in/eTu-5Ri
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022