Alternative names: Australasian Grass-Owl; Australian Grass-Owl
- Tyto longimembris
Male: 32-36cm (12½-14¼ in); Female: 35-38cm (13¾-15 in)
- Dark brown above, pale spots
- Cream or buff below with brown spots
- Buff wing bars
- White facial disc
- Brown mark in front of each eye
- Brown iris
- Pale brown bill
- Very long feathered legs
- Grey feet
Until recently, the Eastern Grass Owl was considered to be part of African Grass Owl which at that time was known only as "Grass Owl".
There are 6 subspecies:
- T. l. longimembris:
- T. l. chinensis:
- T. l. pithecops:
- T. l. amauronota:
- T. l. baliem:
- Western New Guinea
- T. l. papuensis:
- Montane grasslands of eastern New Guinea
Grasslands, canefields and paddy Fields.
Their diet consists almost entirely of rodents.
They are ground-nesters, building the platform nest from grass in dense tussocks of grass or sedges. The 3-8 dull white eggs are incubated for about 42 days. The young fledge at about 2 months.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Handbook of the Birds of the World Alive (retrieved Nov 2017)
- BirdForum Opus contributors. (2021) Eastern Grass Owl. In: BirdForum, the forum for wild birds and birding. Retrieved 13 May 2021 from https://www.birdforum.net/wiki/Eastern_Grass_Owl