Scarecrow? The bird could probably do with a laugh!
Better gutter guards are probably the order of the day - ones that can keep rats out, too.
On the subject of brazen birds, there are some butcher birds that fly to my door (and land about 2 feet away) when I open it - I figure someone local has been feeding them and they now associate a door opening with food, though it looks like they're trying to fly in through the door sometimes.
Then there are the magpies that walk right past me when I'm out gardening - seriously, they're within arms reach - but they just glance at me casually for a couple of seconds then keep going, picking at the ground for grubs.