1. Dietary Analysis of the Barn Owl

2. Why? 1st PA Breeding Bird Atlas 1983-89
Barn Owl decrease in Pennsylvania and throughout its range
1st PA Breeding Bird Atlas

3. 2nd atlas

4. Barn Owl aka Monkey-Faced Owl

5. Owl Pellets Not poop! Undigested bones and fur
Pellet ejection at the nest

6. Meadow Vole Microtus pennsylvanicus

7. Likely things you’ll find...
Meadow Vole, Microtus pennsylvanicus
Masked Shrew, Sorex cinereus
Star-nosed Mole, Condylura cristata

8. Meadow Vole Microtus pennsylvanicus
Herbivore
Widespread
Active year-round, mostly nocturnal
~5 pups, 1-5 times per year

9. Meadow Vole

10. Masked Shrew Sorex cinereus
Maximum size ~8 grams
Active year round
May eat own weight in a day

11. Masked Shrew

12. Sorex monticolus

13. Sorex monticolus

14. Star-nosed Mole

15. Southern Red-Backed Vole Myodes gapperi

16. House Mouse Mus musculus

17. White-footed Mouse Peromyscus leucopus

18. Deer Mouse Peromyscus maniculatus

19. Meadow Jumping Mouse Zapus hudsonius

20. Woodland Jumping Mouse Napaeozapus insignis

21. Northern Short-tailed Shrew Blarina brevicauda

22. Masked Shrew Sorex cinereus

23. Eastern Cottontail Sylvilagus floridanus

24. Eastern Chipmunk Tamias striatus

25. Norway Rat Rattus norvegicus

26. European Starling Sturnus vulgaris

27. House Sparrow Passer domesticus