Bird expressions

I'd written this for another forum but thought it might amuse some people, so here it is:

Pet birds, observed close-up, have many expressions:

For example, sleepy:


surprised (by a bird flying past the window)


confident


angry (argument over who sleeps where)


bored


suspicious (of a new thing placed below him)


I don't know if wild birds do the same? I'm guessing they do, but it's harder to watch them to find out...

Mike