The Kingfisher is easy to notice while driving. They often sit on wires near water. Driving back from the keys and just entering the Everglades, in less than three miles, I counted 7. That said, Audubon says that "recent surveys indicate declines in [their] population" and that they "may be vulnerable to loss of nesting sites and to disturbance during the breeding season."
Kingfishers use their claws and beaks to tunnel through muddy banks to build their nesting burrows that can be 3 to 8 feet long. I saw a pair last year, but so far this spring, I've only sighted a female. To date, I haven't found a Kingfisher burrow.
A link to interesting Kingfisher facts.