Sandhill Cranes and March Moon

My friend Roger and I are at the beginning of a 10-day trip to the Southwest. We are spending the first part of our trip along the Platte River in Central Nebraska, with the intention of photographing the Sandhill Crane migration. Last evening at sunset the moon was already rising in the East. Lots of cranes were flying in front of the field of view of the moon, so I thought it would be neat to try and capture them as they passed in front of it. It proved to be a bit more difficult than expected. Since it was already starting to get dark it was pretty much impossible to use a shutter speed fast enough to freeze the movement of the birds. So... the moon is sharp and the birds are blurry, but I still really like these shots!