What is a Barn Owl Pellet?

A pellet, in ornithology, is the mass of undigested parts of a bird's food that some bird species occasionally regurgitate. The contents of a bird's pellet depend on its diet, but can include the exoskeletons of insects, indigestable plant matter, bones, fur, feathers, bills, claws, and teeth. In falconry, the pellet is called a casting. The passing of pellets allows a bird to remove indigestable material from its proventriculus, or glandular stomach. In birds of prey, the regurgitation of pellets serves the bird's health in another way, by "scouring" parts of the digestive tract, including the gullet. Pellets are formed within six to ten hours of a meal in the bird's gizzard (muscular stomach).
Ornithologists may collect and analyze one species' pellets over a span of time to provide information on the seasonal variation in its eating habits. One advantage of collecting pellets is that it allows for the determination of diet without the killing and dissection of the bird. Pellets are found in different locations, depending on the species. In general, roosting and nesting sites are good places to look: for most hawks and owls, under coniferous trees; for Barn Owls, at the bases of cliffs or in barns and silos; for yet other species of owls, at their burrows or in marsh and field grasses. Hawk and owl pellets are grey or brown, and range in shape from spherical to oblong or plug-shaped. In large birds, they are one to two inches long, and in songbirds, about half an inch. They are found in many other species, including grebes, herons, cormorants, gulls, terns , kingfishers, crows, jays , dippers, shrikes, swallows, and most shorebirds. Ornithologists examining pellets have discovered unusual items in them-even bird bands that were once attached to a smaller species that was consumed by the predator bird. In the United States, screech owl pellets have contained bands from a Tufted Titmouse, Black-capped Chickadee, and American Goldfinch. In 1966, a Golden Eagle pellet in Oregon was found to contain a band placed on an American Wigeon four months earlier, and 1600 km (1000 miles) away in southern California. (compliments of Wikipedia)

Tuesday, August 12, 2008

Where would I find Owl Pellets?



Owl pellets can be hard to find but you can do it if you employ some investigative skills. The pictures above demonstrate some places you might look if you have some extra time on your hands. All of these locations should be strategically located on the edge of open fields where the owls can locate their prey.
  • Palm trees. If you separate the fronds of date palms, you'll find pellets laying in the tree. The owls roost and sometimes nest in these trees because they provide good protection from the rain and wind.
  • Cut banks. Ever drive across the countryside and notice holes in the side of an enbankment? There's a whole hierarchy of prey and predators here.During certain times of year, swallows will migrate and take up residency in these cutbanks. One of the more wise decisions an owl would make would be to live in the penthouse suite at the top of the sometimes hundreds of holes in the bank. Easy pickens. And tastes like chicken.

No, really, they taste like chicken!

  • Other places similar to cutbanks are rock walls or high cliffs that provide the owl a great position. This position is considered a vantage point and allows the owl to maintain its perspective over its prey. Some of these positions look like the picture on the right.
Above are some pictures that correspond with the items above to help you in your quest. Good luck!