Similarly, in Finland there are some black-headed gull colonies that have chosen to live and nest in rail yards. The birds don’t seem to mind the freight trains

Similarly, in Finland there are some black-headed gull colonies that have chosen to live and nest in rail yards. The birds don’t seem to mind the freight trains passing by – or even literally over their heads – but apparently their predators and egg thieves are less comfortable with big noisy human things moving around.