Do pigeons know how to use Twitter?

Maurice Chevalier first sang Louise in the 1929 movie Innocents of Paris. I love this song, but one line is baffling. Birds in the trees seem to Twitter Louise? Do most sparrows know how about Twitter?

LOUISE

S’Wonderful! Oh, it’s wonderful

To be in love with you.

Beautiful! You’re so beautiful

You haunt me all day through.

Every little breeze seems to whisper Louise

Birds in the trees seem to twitter “Louise.

Each little rose

Tells me it knows I love you, love you.

Every little beat that I feel in my heart,

Seems to repeat,

What I felt from the start,

Each little sigh

Tells me that I adore you, Louise.

Just to see and hear you

Brings joy I never knew

But to be so near you,

Thrills me through and through

Every little breeze seems to whisper Louise.

Birds in the trees seem to twitter Louise.

Each little rose

Tells me it knows I love you, love you.

Anyone can see why I wanted your kiss,

It had to be

But the wonder is this:

Can it be true, 
 someone like you could love me, Louise?