COUNTRY SPARROW POPULATIONS. “The House Sparrow index from 1970 to 1999, shows an increase up to 1979 followed by a decline of about 60%, although this had flattened out by 1995, suggesting that the farmland population has now stabilised at a new, lower level.”
https://lnkd.in/ezA77j7
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022