Returned for Winter #2

A week ago, the suet was on sale at a store nearby, so I bought enough to stock up for the winter birds.  But, aha, someone else loves to munch on this by hanging onto the bird feeder.

"I am ready to jump onto the feeder!!!"

Another cutie bird has just arrived at my backyard.  "Welcome back!"

 "Do you remember me?  A yellow bird with black
 stripe mask who likes to nibble on the suet."

"I am a Townsend's Warbler.  Can you tell whether I am
he or she?  It's easy.  I am a male because of the black mustache! 

I'm in a rush to eat because a squirrel might return any minute."