Скачать или смотреть The Simplest Bird-scarers

Many pieces of black plastic sheet were tied around branches of a Japanese red-cedar tree (Cryptomeria japonica, family Cupressaceae) at the riverside to scare off birds. The black sheets swayed in the wind, mimicking the sacrificed carcasses of crow. That was probably the simplest and cheapest bird-scarer to prevent birds from roosting or building a nest on the treetop. But a paired crows built a nest on the treetop of a Lombardy Poplar (aka black poplar; Populus nigra var. italica, family Salicaceae) nearby, instead. Mid-February 2020 in Japan.

For a full story (text in Japanese);
https://sigma-nature-vlog.blogspot.co...