There are many reasons why blackbirds like to build nests on windowsills. First of all, compared to the indoor environment, the window sill has important conditions such as breathability and sunlight.
These are necessary conditions for blackbirds to build nests. Secondly, the window sill is relatively high, which is safer than the position on the ground and is less likely to be disturbed by people and animals. Thirdly, the windowsill is quiet, which can avoid noise and protect the hearing of blackbirds and young birds. Finally, windows provide a convenient source of food, such as insects and small animals. Therefore, the choice of blackbirds to nest on windowsills is the result of natural selection, making them more adaptable to the environment and improving the success rate of hatching and raising the next generation.
