MrsD, are your yellow birds Goldfinches or some other finch variety? I have Goldfinches and a few Purple Finches.
Have you ever watched the hummingbird migration map at hummingbirds.net? Fascinating! I got to put up a dot one time, when I lived in Mississippi.
I love watching birds build nests! Last year an Eastern Phoebe built a nest over the light fixture on the front porch. They stack nests for each egg laying, and at the end of the season there were 3 distinct layers. Each nest had babies!
Secondary Progressive Multiple Sclerosis (or maybe RR), diagnosed '00
Everything will be alright in the end. If it's not alright, it's not yet the end.