Bird in the hand?

Just thought we would share this with you, happened about 10min ago. There was two of them feeding off Clares hand but I didn't get the camera quick enough. Someone here thought they were Housemartins, but then again he once mistook a bloke in a frock for an attractive young lady, so we don't trust his judgement that much! Is this usual behaviour for wild birds, they just landed straight on Clares hand, no bother?