I saw the biggest group of herons I have seen fly over Delta Ponds on my walk. Then I saw a couple nesting trees where they were already claiming nests from last year. Six or eight of them were in each tree. This one is landing where the branches and twigs seem to be not able to hold them up. Yet they make a graceful landing. I guess it's because they are incredibly lightweight. Despite being up to four feet tall, with a wingspan of six feet, these huge birds weigh only 5 lbs! Amazing!