No idea how long the nest has actually been in the holly bush outside the living room window...I only thought something was odd when I got an earful from a cardinal while I was pruning the dappled willow next to the holly. A day or two later I'm looking out the window and see the holly from a different angle - including the nest. The mom has been sitting in the nest quite a bit this week, getting a lot of undesired attention from the cats through the window. And today? Babies!