I took this photo earlier this week in the park near our house. (Click on the photo for a larger view at my Flickr site.) I like the way the light spills into the forest in the morning. You can't tell from this photo, but this area has become a nesting site for Great Blue Herons. They have a very distinctive call, to say the least.
If you want to find out more about the Great Blue Heron, (or any other bird) including listening to their call, check out the amazing Cornell Lab of Ornithology website. If you're a birder, you'll go nuts. And if you're not, it's still a pretty cool example of the potential of all this technology. They've been able to put their collection of virtually every bird call in the world online for the benefit of us all.