I posted 5 or so months ago about a female with an injured leg. She laid 2 eggs, one hatched and fledged. She looked haggard, dull then.
Well, with our first freeze I put out worms in my feeder. Within minutes there were 3 bluebirds on the bar, all looking plump and healthy. In the center, a female perched on just one foot! I could see no evidence of the other leg. She looked good, moving and eating well. Even got to observe her in the birdbath taking a long, thorough bath.
I love resilience.