So Fay still has the ten eggs she had yesterday. I nearly said 'only 10 eggs'! However, only Kate last year in this same box has ever laid as many as 10 eggs in a clutch in any of our boxes. I wonder if Fay is the bird we called Kate last year?
This is certainly not impossible. In 2003 we had a bird we called Fluffy because she had a very pronounced set of curly feathers on her front. She was so easily identifiable that we had no doubt it was the same bird that occupied the box again in 2004.
Wouldn't it be nice if our birds could be ringed, so that we could identify them for sure from one year to the next?!