This little bird is in love with my cat.
I got up this morning, and this little fellow was sitting outside my window trying to get inside, peering through the glass,
fluttering against the window, jumping excitedly from twig to twig, and singing a beautiful little song.
-- Beau was trying to figure out how to work the latch to let him in!

It's been there for over an hour now, not at all intimidated when even I approach.