Richard and Diane Van Vleck Personal Pages
The Home Habitat

barn owl prey cam outside entrance to nest box

Barn Owl 2011 Prey Cam
Tyto alba

A video camera with motion detection was employed to record all prey brought to the nest box or exterior perch during the period from the the day the last egg hatched until the adults stopped providing prey at the nest box. During the early nestling phase, the camera was mounted on back of the nest box directly across from the entrance. This provided a good view of the adult entering the box with prey in its mouth. Later, when older nestlings tend to move forward in the box and block the view of the entrance, the camera was mounted outside on the barn wall, focused on the exterior perch. The photo at right shows the exterior camera mounted in a pvc tube and supplemental light provided with a 15 watt tungsten bulb. Some data was lost during this nesting, due to power failures from electrical storms. For more details of the graphs below, see the previous page

Barn owl nestling swallowing vole Nestling barn owl swallowing vole Adult Barn owl entering nest with prey Adult Barn owl passing prey to fledgling Two fledgling barn owls claiming the same vole Three fledgling barn owls share the same perch Adult Barn owl passing prey to nestling Adult barn owl leaving perch after delivering vole to fledgling Adult barn owl offering meadow vole to nestling
Number of barn owl prey items by date
number of barn owl prey items by hour
percentage of barn owl prey items by species

The 31 unidentified prey items were, likely, mostly meadow voles. The 11 mice were likely all white footed mice

Back to the 2011 Barn owl nesting

2014 Barn owl prey study
2012-2013 barn owl nesting
2011 barn owl nesting
2011 barn owl prey cam
2006 barn owl polygamy
2010 barn owl nesting
2003 barn owl nesting
2003 barn owl prey cam
The attic barn owl nest
Living with barn owls
The barn owl nest box
An interior barn owl box
Barn owl electrocution
The Barn Owl
2014 barn owl nesting - 2022 update The owls are back!

2022 update - Return of the barn owls
2021 Chimney Swift tower success!!!
2020 Barn Swallow nesting
Barn swallow nest cups
2019 Barn Swallows and Black Rat Snakes

2018 - The Barnyard Balance of Nature Goes Awry
Black rat snakes vs barn swallows, Northern flickers, kestrels and others

2018 Purple Martin preference for clam shells
2017 - Return of the Monarchs!
2017 Purple Martin prey photos
2010 - 2016 Northern flicker nestings
2014 house wren gourd use
2014 - A dramatic loss of many types of insects
2019-2020 Purple Martin nesting
2014 barn owl nesting - prey study
A new barn swallow shelter for 2013
2010 barn owl nesting
2010 Update
2016-2017 Kestrel nestings
Starling traps
Using blinds in the home habitat
Providing perches for birds
Providing snags for wildlife
The ugly young maple
2001 - 2013 nest cams
Use of tomato cages as hunting perches by insectivorous song birds
Vultures, beetles and the resurrection of life

Species of interest in our yard - photos and articles
barn owl American kestrel purple martin barn swallow Eastern bluebird
tufted titmouse Eastern phoebe yellow shafted flicker tree swallow chimney swift
house wren big brown bat Carolina wren brown thrasher catbird
cedar waxwing Northern mockingbird
Yellow warbler Acadian flycatcher

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