Burrowing owl: Athene cunicularia
Genus/Species: Athene cunicularia
Common Name: Burrowing owl
Federal Status: Not Listed
FL Status: State Species of Special Concern
FNAI Ranks: G4T3/S3 (Globally: Apparently Secure, Sub sp. Rare/State: Rare)
IUCN Status: LC (Least Concern)
The burrowing owl is one of the smallest owls in Florida. It can reach a length of nine inches (22.9 centimeters) with a wingspan of 21 inches (53.3 centimeters). Burrowing owls have brown dorsal (back) feathers with patches of white spots, and a white underside with brown bar-shaped spots. The body color pattern helps them blend in with the vegetation in their habitat and avoid predation (Millsap 1996). They also have large yellow eyes and a white chin.
The diet of the burrowing owl primarily consists of insects; however, they will also feed on snakes, frogs, small lizards, birds, and rodents. .
Nesting season occurs between October and May, with March being the primary time for laying eggs. Nesting occurs in burrows in the ground that they dig. These burrows will be maintained and used again the following year (Haug et al. 1993). Females lay up to eight eggs within a one-week period, and they will incubate the eggs for up to 28 days. Once the white-feathered juveniles are born, it takes two weeks before they are ready and able to appear out of the burrow. Juveniles will begin learning how to fly at four weeks, but will not be able to fly well until they are six weeks old. Juveniles will stay with the parents until they are able to self-sustain at 12 weeks old.
Burrowing owls are different than other owls as they are active during the day time (diurnal) rather than at night (nocturnal) during breeding season. During the non-breeding season, they become more nocturnal.
Habitat and Distribution
Burrowing owls inhabit open prairies in Florida that have very little understory (floor) vegetation. These areas include golf courses, airports, pastures, agriculture fields, and vacant lots. The drainage of wetlands, although detrimental to many organisms, increases the areas of habitat for the burrowing owl. The range of the burrowing owl is throughout the peninsular of Florida in patches and localized areas. Burrowing owls can also be found in the Bahamas (Florida Natural Areas Inventory 2001).
The burrowing owl faces many threats to its population. The main threat is the continued loss of habitat. Threats to habitat include construction activities development and harassment by humans and domesticated animals. Heavy floods can destroy burrows in the ground, which can cause the destruction of eggs and young. Other threats include increased predation by ground and aerial predators in the burrowing owl’s habitat, and vehicle strikes.
Conservation and Management
The burrowing owl is protected by the U.S. Migratory Bird Treaty Act and as a State Species of Special Concern by Florida’s Endangered and Threatened Species Rule .
Biological Status Review (BSR)
Supplemental Information for the BSR
Other Informative Links
Florida Natural Areas Inventory
FWC Species Profile
FWC - Florida's Breeding Bird Atlas
International Union for Conservation of Nature
The Cornell Lab of Ornithology
Printable version of this page
Florida Natural Areas Inventory. 2001. Field guide to the rare animals of Florida. http://www.fnai.org/FieldGuide/pdf/Athene_cunicularia_floridana.PDF
Haug, E. A., B. A. Millsap and M. S. Martell. 1993. Burrowing Owl (Athene cunicularia), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online/
Millsap, B.A.,. 1996. Florida Burrowing Owl. Pages 579-587 in J.A. Rodgers, Jr., H.W. Kale II, and H.T. Smith (Eds.). Rare and endangered biota of Florida, Vol. V: Birds. University Press of Florida, Gainesville, FL.
Image Credit Photo by FWC