Some people just don't care. I'm always really concious when I have my young boys with me, not to make too much noise and disturb other people. I love introducing them to nature, but not at the expense of other people's enjoyment. There are plenty of places to get good views.
Sorry! – I think, due to a slow PC, I may have accidentally clicked on 'Flagged as spam/abuse'. Hope it doesn't cause you any problems.
I don't know whether i was more angry for the birds or the people who had wasted their journey. I hope not too lol