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3 Natural HistoryThe original description of Tyto novaehollandiae was by James Francis Stephens in 1826.Published in General Systematic Natural History by George Kearsley Shaw chapter 13part 2 page 61.Stephens description reads:“LENGTH about seventeen inches : beak white : face reddish-buff : from the chin achocolate mark, surrounding the margin of both the face circles, and finishing at the hindhead; before the eye dusky black : plumage above dark ash-colour, speckled with grey,dashed with white; this appearance arising from each feather having a darker spot at theend, and within this triangular white mark : the inner webs of the feathers rusty yellow :quills and tail clouded, the latter crossed with five or six bands of black, margined aboveand below with white : under parts of the body and under wing- coverts pale buff, with adull dusky spot at the end of each feather : outer quill greatly serrated, the second less so,the edges of the others smooth : legs feathered to the toes, the latter hairy : claws black.Inhibits New Holland.”3.1 MorphometricsThe masked Owl exists in three basic phases in plumage, (1) dark tawny, with duskyback toned tawny and faintly spotted white, rich ochreish face and ventral surface; (2)intermediate, with dusky back toned pale tawny and coarsely spotted white, whitish faceand ventral surface; (3) white, with grey-white back coarsely speckled grey and white,white face and ventral surface. (Readers Digest)3.1.1 Mass and Basic Body MeasurementsLength:Male: 35-40cmFemales: 40-50cmWeight: average 660 gramsTasmanian Masked Owls are the largest of all Masked Owls.Length:Male: 35-40cmFemale: 43-57cmWeight: up to 1260 gramsWingspan: up to 129cm3.1.2 Sexual DimorphismFemales are slightly larger and darker in colour than males. Males have much smallertalons.10
3.1.3 Distinguishing FeaturesThe masked owl is similar to the barn owl Tyto alba but is generally larger and darker.The facial disc is white and has short brown feathers around dark brown or black eyesforming a heart shape outline. The masked owl exists in several colour forms there iswide variation in plumage. The palest have a white face with a brown patch around eacheye, the darkest have a chestnut face. Underparts can be grey to dark brown with buff torufous mottling and fine pale spots or under parts can be white to rufous brown withvariable dark spotting. The wings and tail are well barred. Legs are fully feathered downto the toes and the feet are large and powerful.Figure 2 dark morph showing heart shaped face3.2 Distribution and HabitatThe Australian Masked Owl is a barn owl of Southern New Guinea and non-desert areasof Australia.Masked Owl habitat varies to some extent across its geographic range and in response tovegetation communities, vegetation structure and landscape. They are found across arange of habitats from wet sclerophyll forests, dry sclerophyll forest, non eucalyptdominant forest, scrub and cleared land with remnant old growth trees. there are howeverseveral aspects of habitat preference which appear to be in common: Masked Owlsrequire large hollows in old growth eucalypts for nesting; it often favours areas withdense understorey or ecotone comprising dense and sparse ground cover. They are oftenrecorded foraging within 100-300m of the boundary of two vegetation types. Areas near11
Page 1 and 2: Husbandry GuidelinesForMASKED OWLTy
Page 4 and 5: BEAK:If using proper restraint tech
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Page 8 and 9: 1 IntroductionOwls make up the orde
Page 12 and 13: gullies and along watercourses are
Page 14 and 15: 4 Housing RequirementsAs directed b
Page 16 and 17: Wire roof surfaces should be as hor
Page 18 and 19: two meters from the ground. Tree st
Page 20 and 21: • Hose out water bowl thoroughly
Page 22 and 23: la biblioteca vaticana celebracon u
Page 24 and 25: FooditemStarvedayA mix ofGamemeat,(
Page 26 and 27: 7 Handling and Transport7.1 Timing
Page 28 and 29: Figure 10 slowly pulling owl out of
Page 30 and 31: The door can be horizontal or verti
Page 32 and 33: 8 Health Requirements8.1 Daily Heal
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Page 38 and 39: 9 BehaviourThe Masked Owl is consid
Page 40 and 41: 9.11Suitability to CaptivityMasked
Page 42 and 43: 10.6 Timing of BreedingMasked Owls
Page 44 and 45: 10.15 Age of Removal from ParentsAf
Page 46 and 47: This sophisticated database applica
Page 48 and 49: • A nestling’s first meal after
Page 50 and 51: Human imprinted birds are sensitive
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Page 55 and 56: ReferencesJackson, S.M. (2002) Stan
Page 57 and 58: 12 Bibliography57
Page 59 and 60: 14 AppendixAppendix 1 standards for
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equirements of raptors.b) Suitable
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Appendix 4 MSDS for F1075
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