All afternoon, there was a "bait ball" of small fish circling the water in a big dark clump. This attracted scores of birds, angling to get a good meal. This video was shot using the Timelapse iPhone app and edited on my phone using Splice.

Another video shot on the beach, using iMotion HD on my iphone4, with a 10 second interval.

Using the iMotion HD app to test some time lapse video at the beach near Santa Cruz. This was about an hour of elapsed time with a 5 second interval played back at 15 fps.