The
Cornell Lab of Ornithology is expecting a 4th egg to be laid in this great blue heron nest within the next couple of hours. As I write this, the webcam has around 2500 visitors.
Great Blue Herons do a lot of co-parenting, with the male and female taking turns on the nest while the other goes off to get food and twigs to help build the nest up. You can't tell the males from the females with herons, but there is one tell tale sign on these particular birds-- the male in this nesting pair has one missing toe.
I'm looking forward to this, though I may never get anything done again.