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Table 4.1. Species, use category, and % use, determined by cavity inspection, of pileated woodpecker cavities in forests near Hinton, Alberta, 1993–98. Cavity type (% use) Shelf Shallow Deep Hollow Totalb Species Use categorya (n = 115) (n = 97) (n = 570) (n = 96) (n = 878) c Pileated woodpecker Ro 0.0 10.3 50.9 95.8 44.6 Secondary cavity users 0.0 0.0 12.1 3.1 8.2 Duck Re Squirrel Re, Sh, Fs, 13.0 10.3 14.7 2.1 12.3 Owl Re, Sh, Fs, Ro 15.7 26.8 18.1 0.0 16.6 Bat Ro 13.0 3.1 2.5 5.2 5.4 Woodpecker Re, Ro, Sh 0.9 2.1 1.8 13.5 2.8 8.7 11.3 8.4 10.4 8.3 Unknown mammal Un Unknown bird Un 4.3 8.2 9.8 17.7 9.8 Unknown species Un 3.5 0.0 1.8 7.3 1.9 Wasps Re 6.1 2.1 0.4 0.0 1.3 Total SCU species 65.2 63.9 69.5 59.4 67.2 Empty 34.8 33.0 21.1 4.2 22.3 a Use category: Ro = roosting, Re = reproduction, Sh = shelter, Fs = food storage, Un = unknown. b Total use exceeds 100% because of cavities that contained evidence of multiple species use c Excludes pileated woodpecker nesting activity.

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Pwp 2001 04 rpt phdthesis pileatedwoodpeckerhabitatecologyinabfoothills  

http://foothillsri.ca/sites/default/files/null/PWP_2001_04_Rpt_PhDThesis_PileatedWoodpeckerHabitatEcologyinABFoothills.pdf