Great Blue Herons fly with their necks folded - Sandhill Cranes and Roseate Spoonbills fly with their necks extended.

I used to keep a small houseboat at Sweetwater Resort - a now defunct fish camp. There was a problem once.... fish were disappearing from the bait tank every night. The bait tank was a fairly large cement structure outside, by the canal. At first we thought that some fisherman must be sneaking up at night and stealing bait. Day after day they would restock the tank, but every morning the fish would be gone.

I'm sure you can see where this is going! After sitting up all night with a shotgun, the owner discovered his thief - you guessed it - a Great Blue Heron. The bird was coming in early every morning, standing on the edge of the tank, and just helping himself!