Have you ever heard an explosive bird call, but cannot seem to find what is making it? According to the J.N. \u201cDing\u201d Darling National Wildlife Refuge, it is probably a green heron. The secretive birds are hard to spot due to their proclivity for secluded, densely vegetated areas. Green herons live and nest in the roots of mangrove trees, where they forage for small fish, insects and crustaceans. Its body is a deep chestnut brown, which helps it blend in with its marshy mangrove home. A dark cap and yellow accent compliment the coloring, but it is the striking velvet green back that gives the green heron its name. The J.N. \u201cDing\u201d Darling National Wildlife Refuge is at 1 Wildlife Drive, Sanibel.<\/p>\n