Just in case you need someone to tell you this......I'm happy to oblige.

one of my tiny favorites

What is it about bushtits? They seem happy. By virtue of size and song, cheerful is the adjective that comes to mind. I enjoy the way that they move as a body. Apart and together--stretching one or two at a time to cross a street, then the inevitable regroup as others notice that someone's moved on.

Is it food that propels them ever onward? Do the lallygaggers look up from the pursuit of a particularly plump gnat or aphid and think, "Oh shoot! Phil's in that other bush! Gotta go!". Is it the safety in numbers? Surely that plays a part.

Bushtits are the consummate flitter-ers--buzzy, zig-zaggy flight, wings all over the place. They look straight out of a cartoon or fairy tale.  If a bird is going to zip around trailing garlands or draping ribbons or strewing flowers, the bushtit is the logical choice. This then makes them fairly vulnerable to predators--certainly that's the reason for their flocking together so interconnectedly. That and it must take a large number of them to hold the larger banners.