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Common Barn Owl (Tyto alba)

Bio 211L Iowa Endangered Species Presentation

Danielle Lilleskov

on 1 May 2013

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Transcript of Common Barn Owl (Tyto alba)

Tyto alba Common Barn Owl Bird Class: Aves
Order: Strigiformes
Family: Tytonidae Habitat Found At Low Elevations
Open Habitats, Ex: Open fields, Grasslands, Marshes, Deserts
Require cavities for nesting, Ex: Hollow trees, Barn lofts, caves Ecosystem Roles Limit populations of mammals and bird species
Serve as food for predators
Host several parasites

Benefits to farmers
No negatives to humans Why Endangered? Conversion of pastures, grasslands and hayfields in to crop fields
Urban development is also a cause as well as the disappearance of large cavity trees
Old Buildings being taken down
Competition in predation with the Great-Horned Owl What Can We Do? Iowas Wildlife Diversity Program is funding 16 projects towards saving the barn owl
Conservation Reserve Program allows land to be idled
Nest Boxes are being provided for the nesting of the birds
To help, you can also report sightings of the birds to the DNR
Wildlife Diversity Program: (515) 432-2823 Where is this species found? Population Size in Iowa Estimates in Iowa is 3 to 5 pairs
Unknown exactly how many are in Iowa It is uncommonly found in the southern portion of the state
Seldom seen in the north Animal Diversity Web: Tyto alba: http://animaldiversity.ummz.umich.edu/accounts/Tyto_alba/
Iowa DNR Barn Owl Fact Sheet: http://www.iowadnr.gov/portals/idnr/uploads/education/Species/birds/pub_barnowl.pdf
Iowa Breeding Bird Atlas: http://books.google.com
Flying: http://commons.wikimedia.org/wiki/File:Tyto_alba_1_Luc_Viatour.jpg
Mother feeding: http://www.arkive.org/barn-owl/tyto-alba/image-A21838.html
Nighttime: http://hawking.homestead.com/Raptor_wallpapers.html
Rotated head: http://www.fotonatura.org/galerias/fotos/251834/
Nest box: http://www.dnr.state.md.us/wildlife/Habitat/WildAcres/wabarnowlplan.html Works Cited:
Full transcript