Yesterday afternoon while doing some landscaping in my backyard I found a new neighbor living in the back corner of our yard.
This Black-headed Grosbeak nest was actually quite easy to find, particularly when he was incubating. He couldn't shut up. He was singing the whole time he was on the nest and I could tell when he had taken incubation duties after the female was on the nest for a while because his singing was coming from one spot rather than all around they neighborhood. There is apparently still a bit of disagreement about his territory though. I watched what I assume was this male and another fighting near the nest. They had locked bills and were tumbling through the branches as they each tried to gain an advantage. Both were singing through the whole thing too.
This species has become much more common in the area over the last 20 years. I don't remember seeing many when I was younger but they are fairly abundant bird in the area now.