I happened to look out the window one day and saw this robin sitting in a flower bed. Something about how he looked made me notice him (her?).
When I first noticed him he looked a little fat, but right before my eyes he quickly swelled up as you see here. After I took this picture I got distracted. And a minute or two later when I looked out again …
… he was walking away looking normal!
Can anyone tell me what that was all about?
Update: My young friend, Beth, at C. Beth Blog did some research on this and passed on the following info: The Flame Robin is territorial, defending its territory against other members of its species and also Scarlet Robins where they co-occur…. The Flame Robin deploys a number of agonistic displays, including a breast-puffing display where it puffs its breast feathers.” From http://en.wikipedia.org/wiki/Flame_Robin
She points out that the robin species might not be the same, but all robins might exhibit the same behavior. Sounds logical to me! Thank, Beth.