Out of the 4 nests (as of last week anyway) I noticed 2 have been abandon.

The other two nests, the swans were sitting on. Actually one of the nests, the swan was rotating her eggs.

I have photos of the 1 cygnet I've seen so far at Lost Lagoon: http://www.flickr.com/photos/tyleringram/3599465200/

I have a bunch more too as I frequent the lagoon every couple days. I'm hoping the other 2 nests can produce cygnets that survive.