Please don't kill the native frogs and toads on purpose, their tadpoles eat mosquito larvae and other aquatic insects as well as algae. Once they've come out of the water they'll eat mosquitoes, roaches, and any other bugs that might try to move in with your chickens at night. Given the opportunity, large Southern toads will munch on small rats and mice as well, as long as they can swallow it.
The Southern Toad, Bufo terrestris, looks similar to the Cane or Marine Toad, Bufo marinus, and does have parotoid glands (where toxin is produced as a defense.) However Southern Toads are native and are NOT toxic, their glands are much smaller and produce very little toxin within the secreted substance, although if you handle them you should wash your hands before touching your eyes or nose, it can be irritating to human mucous membranes or cause an allergic type of reaction, but the local birds usually eat them with no problems. If the toad secretes the substance from the glands it will taste nasty and most predators will spit it out, that is its only means of defense other than hop and hide or burrow.
Easiest way to tell the difference, bumps or ridges on top of the head, Southern Toad.
Bumps on the side of the head, behind the ear, on the shoulders, Cane Toad.
Here: http://www.wec.ufl.edu/extension/wildlife_info/frogstoads/rhinella_marina.php
At the bottom of the page there's a comparison between the two, but the large parotoid glands of the Cane Toad are more obvious in the photo at the top. Looks like the genus names have been changed recently, Anaxyrus terrestris and Rhinella marina.
Also: http://ufwildlife.ifas.ufl.edu/frogs/canetoad.shtml
Another comparison shot, also asking for reports of Cane Toad spotting outside of the range marked on the map. If you're outside of the zone, want to contribute to science, and help remove the invasive species introduced as pest control in sugar fields, you might want to consider contacting them.
Please add me to your list on the west coast and central lists TYVM
