>>432
sometimesとか使えばいいとおもふ。
Crows sometimes eat garbage like products made of a plastic although they don't realize that they are not food.
とか。中身増やしちゃったｗ

It's not unusual to〜なんかも使えるんじゃないかな。
It's not unusual for crows to eat garbage.
not unusualをcommonやusualに変えてもいいし。

変わった表現としては
People don't be surprised to see crows eating garbage.
なんかでもまわりまわってそういう意味になるかと。

間違ってたらごめんねｗ