Species:

Leach's Storm Petrel (Hydrobates leucorhous)

Eagle Owl (Bubo bubo)

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Length (cm):
19-22
60-75
Wingspan (cm):
45-48
160-188
Weight (gram):
40-50
1800-4200
Size group:
Thrush-size
Bigger than a crow
Main Texts:
Appearance:

Forked and fairly long tail. Clearly bigger than Storm Petrel, with more slender appearance and longer wings. Generally not as black, and shows brownish tone to plumage. The white rump patch is oval, has a weak grey center stripe, and does not reach as far down on the sides as in Storm Petrel. Light grey upper greater coverts form a wing-band. Underside of wings all dark. Flight pattern variable, with frequent changes in direction and speed. Sometimes glides like a shearwater but at other times shows surprisingly deep wing-beats. Does not patter surface, but will rest on water. Visits breeding ground only at night, and is usually only seen after storms.

Sound:

Only calls at breeding ground. A series of accentuated cooing, interrupted by a squeaky "inbreath" and a loud, absurd, fanfare-like "kaaa-ka-ka-kaaa-ka".

Calls:

Error loading Flash for sound!
See sound file


Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

CC

CC-sound:Steph, Licence,Link.

Appearance:

Very large brown owl. Usually identifiable by its size and brown tones alone. Long ear-tufts usually pointing to the sides (depending on mood). Face differs from Long-eared Owl in having rather dark and brownish facial disks, and much less prominent light eye-brows. Eyes orange. Lacks the pale base of primaries of Great Grey Owl. Flight powerful and more raptorlike than other owls, interspersed with long glides. Ear-tufts foldable, and less visible in flight.

Sound:

Song a very deep "ooho". Continuous, but disyllabic. First syllable emphasized and second syllable rapidly falling in pitch. Quite similar to Long-eared Owl, but deeper and with more pronounced pitch change at end ("release"). Frequency of calls also diagnostic: Typically 8-10 seconds between each "ooho" (2-3 seconds in Long-eared Owl ). Audible at 1 - 4 km distance. Both sexes sing. Has a rich repertoire of contact/alarm calls like a hoarse, heron-like "kreaaak", and an excited, bubbling "hohohohoh".

Song:

Error loading Flash for sound!
See sound file


Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-photo:hehaden, Licence,Link,

CC-photo:martino.pizzol, Licence,Link,

Similar species (image):
Similar species (sound):
Silhouette Group:
Swallow-like
Silhouette
Owls
Silhouette
Several different images of the species
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Several different sounds of the species
Error loading Flash for sound!
See sound file