Spike has always been very fond of the budgies, but now it seems he is actually in love with Luna.
He follows her everywhere. He sings to her, bows to her, dances and hops around her, pretends to eat beside her. The minute she steps into view his wings open that little bit, so he looks like a more splendid bird!
It's amazing and amusing and quite tragic. Like some sort of Shakespearan play! He is utterly besotted, and she has eyes (understandably) only for Pippin!
And while I'm posting birdy youtubes - here's Buffy discovering that other bird in the mirror! XD