5 Biggest Owls

[bob]

Eurasian Eagle Olw
often cited as the biggest of the owls, but some owls come very close or even slightly exceeds them in weight and size


Exceptionally powerful owl, capable of killing the biggest eagles...there were some cases of them attacking and killing nearly adult fledging golden eagles.




60-75cm, 1500-4200g

Size: Length: 58-71cm (22.8-28")
Weight: Female 2280-4200g (80.4-158oz) Male 1620-3000g (57.1-105.8oz)
Average Wing Length (one wing only): Female 47.8cm (18.8") Male 44.8cm (17.6")

The Eagle Owl is a large and powerful bird, smaller than the Golden Eagle but larger than the Snowy Owl. It is sometimes titled the world's largest owl, but so is the Blakiston's Fish Owl, which is slightly bigger on average.[2][3] The Eagle Owl has a wingspan of up to 138-200 cm (55-79 in) and measures 58-75 cm (23-30 in) long. Females weigh 1.75-4.2 kg (3.9-9.4 lbs) and males weigh 1.5-3.2 kg (3.3-7 lbs). In comparison, the common Barn Owl weighs about 500 grams (1.1 lbs). It mainly feeds on small mammals, but can kill prey up to the size of foxes and young deer (up to 10 kg/22 lb), if taken by surprise. Larger prey (over 3 kg/7 lb) is consumed on the ground which leaves the bird vulnerable (for example to foxes).

[bob]

Dimensionally it is the largest of the owls, but very lightly build, much like the australian wedge-tailed eagle.

59-69cm, 800-1700g

In terms of length, the Great Grey Owl rivals the Eurasian Eagle Owl and the Blakiston's Fish Owl as the world's largest owl. However, much of its size is deceptive, since this species' fluffy feathers, long tail and large head obscure a body lighter than that of most other large owls. The length ranges from 61 to 84 cm (24 to 33 in), averaging 72 cm (27 in) for females and 67 cm (26 in) for males. The wingspan can exceed 152 cm (60 in), but averages 142 cm (56 in) for females and 140 cm (55 in) for males. The adult weight ranges from 700 to 1800 grams (1½ to 4 lb), averaging 1290 grams (2 lb 14 oz) for females and 1000 g (2 lb 3 oz) for males.

Great Grey Owl juveniles may themselves fall prey to bears, fishers, and large hawks, especially Northern Goshawks; while adults may fall prey to Bubo owls and lynxes.

[bob]

52-66cm, 700-2950g

Until recently, it was regarded as the sole member of a distinct genus, as Nyctea scandiaca, but mtDNA cytochrome b sequence data (Olsen et al. 2002) shows that it is very closely related to the horned owls in the genus Bubo.

Size: Length 51-68.5 cm (20-27") average female 66cm (26" inches), male 59cm (23")
Wingspan 137-164cm (54-65")
Weight 1134-2000g (40-70oz) average female 1707g (60oz), male 1612g (57oz)

[bob]

GREAT HORNED OWL
51-60cm, 680-2500g

Probably the most aggressive and powerful of the owls, recorded taking red-tailed hawks and even great grey owls, and wont hesitate to take on the big eagles.

below some info from wikipedia

Individual Great Horned Owls range in length from 18-27 in (46-68 cm) and have a wingspan of 40-60.5 in (101-153 cm); Females are larger than males, an average adult being 22 in (55 cm) long with a 49 in (124 cm) wingspan and weighing about 3.1 lbs (1400 g).

There are almost no predators of adults, but they may be killed in confrontations with eagles, Snowy Owls and, mostly, other Great Horned Owls

[bob]

Blakiston's Fish Owl, Bubo blakistoni, is an owl. This species is a part of the family known as typical owls, Strigidae, which contains most species of owl. Blakiston's Fish Owl and three related species were previously placed in the genus Ketupa; mtDNA cytochrome b sequence data is equivocal on which genus name is applied for this species (Olsen et al. 2002). Its habitat is riparian forest, with large, old trees for nest-sites, near lakes, rivers, springs and shoals which don't freeze in winter.

Blakiston's Fish Owl is a massive owl at 60-75cm (24-30 in) and is possibly the largest species of owl. A recent field study of the species showed males weighing from 3 to 3.75 kg (6.6-8.3 lbs), with the female, at up to 4.5 kg (10 lbs), being about 25% larger.[1] Superficially, this owl looks like the Eurasian eagle owl, but is paler, and has broad, ragged ear tufts. The upperparts are buff-brown and heavily streaked. The underparts are pale buffish-brown. The throat is white. The iris is yellow (whereas Eurasian eagle owl has an orange iris).

[bob]

compare this euraisian eagle owl

[Deleted]

You have forgotten about the verreaux eagle owl.

[PB]

I just caught some type of owl killing my 5th adult peafowl in a few weeks. They roost in large oak trees around my house and barn in Tennessee. They've lived peacefully on my farm for 15 years. Something took out 3 sets of babies last year after they were able to roost . I thought it was bobcats. What type of owl would be strong enough to take out healthy adult peafowl? I have only 5 males remaining.

[Wade]

Great Horned Owls are common in all of North America and can easily take out adult Pea Fowls.

The territorial calls are distinctive so you can identify them quickly on a summer evening, while relaxing on the yard at dusk and just after.

[jeanine]

we just discovered 4 owlets in a garage apartment. The parents fly at night and are huge. we were somewhat terrified because we didn't know what it was!!!then the owner of this ranch saw the mother fly through a small air vent and we discovered the owls in a cupboard over the refrigerator!! can you advise us on what to do? there exit would be a steep roof slope

[Yolo]

I love licking owls

[Artemisia]

May 8, 2017 21:37:57 GMT -5 jeanine said:

we just discovered 4 owlets in a garage apartment. The parents fly at night and are huge. we were somewhat terrified because we didn't know what it was!!!then the owner of this ranch saw the mother fly through a small air vent and we discovered the owls in a cupboard over the refrigerator!! can you advise us on what to do? there exit would be a steep roof slope

Please give them the time they need to fledge. When the young are grown, they will move out without you having to do a thing - then next year in January make sure you mitigated for them by setting up a nesting area somewhere with nesting platforms/ box/ cover etc, whatever you can manage,  but block up the part of your home that you don't want them to access. Remember that most owls are endangered and they really need your help and protection.

In case you wanted them to fledge a bit quicker, you can buy frozen day-old chicks from most petfood outlets, leave about 4 out per day for them. They'll be grown and gone in no time x

[Subhash kumar]

Oct 14, 2009 4:13:35 GMT -5 bob said:

Blakiston's Fish Owl, Bubo blakistoni, is an owl. This species is a part of the family known as typical owls, Strigidae, which contains most species of owl. Blakiston's Fish Owl and three related species were previously placed in the genus Ketupa; mtDNA cytochrome b sequence data is equivocal on which genus name is applied for this species (Olsen et al. 2002). Its habitat is riparian forest, with large, old trees for nest-sites, near lakes, rivers, springs and shoals which don't freeze in winter.

Blakiston's Fish Owl is a massive owl at 60-75cm (24-30 in) and is possibly the largest species of owl. A recent field study of the species showed males weighing from 3 to 3.75 kg (6.6-8.3 lbs), with the female, at up to 4.5 kg (10 lbs), being about 25% larger.[1] Superficially, this owl looks like the Eurasian eagle owl, but is paler, and has broad, ragged ear tufts. The upperparts are buff-brown and heavily streaked. The underparts are pale buffish-brown. The throat is white. The iris is yellow (whereas Eurasian eagle owl has an orange iris).

[Spits]

I have a cool picture here I just took of a great Horned owl right after catching a Raven. How do I post a picture

[Mandypat]

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