The bird is shiny blue-black with white markings on its neck and back and extensive white on the trailing edge of both the upper-and underwing.

Claims that the bird in the Luneau video is a normal pileated woodpecker are based on misrepresentations of a pileated's underwing pattern, interpretation of video artifacts as plumage pattern, and inaccurate models of takeoff and flight behavior.

Catocala myrrha is a synonym for a species of moth known as married underwing.

The breast band of the male is also weaker than that of the female, or is non-existent, and the underwing coverts of the male are more uniformly pale.

The underwing is warm yellow, the bill is yellowish and the legs and feet are pink.

The most similar European thrush species is the Redwing ( T. iliacus ), but that bird has a strong white supercilium, red flanks, and shows a red underwing in flight.

In flight the long fingers are splayed and there is a pale patagial stripe on the underwing.

The female is grey ( western subspecies ) to grey-brown ( eastern subspecies ) overall except for the orange-red lower rump and tail, greyer than the Common Redstart ; at any age the grey axillaries and underwing coverts are also distinctive ( in the Common Redstart these are buff to orange-red ).

The pale patch on the underwing carpal region is of a squarish shape and separated from Buteo buzzards.

The underwing is predominantly white with broad, irregular, black margins.

The upperside and underside of the wing look similar, though the brown is lighter on the underwing.

The underwing is whitish, with grey remiges, dense dark spotting on the inner coverts and a dark leading edge.

The underparts are buff, while the crissum, primaries, underwing coverts and flanks are rich rufous-chestnut, but this is mainly visible when it opens its wings.

There are a number of other ways in which the two species differ which are best seen when they are flying: a ) Short-eared often has a broad white band along the rear edge of the wing, which is not shown by Long-eared ; b ) on the upperwing, Short-eared Owl's primary-patches are usually paler and more obvious ; c ) the band on the upper side of Short-eared Owl's tail are usually bolder than those of Long-eared ; d ) Short-eared's innermost secondaries are often dark-marked, contrasting with the rest of the underwing ; e ) Long-eared Owl has streaking throughout its underparts whereas on Short-eared the streaking ends at the breast ; f ) the dark markings on the underside of the tips of the longest primaries are bolder on Short-eared Owl ; g ) the upperparts are coarsely blotched, whereas on Long-eared they are more finely marked.

The underwing is pale and the wing tips are dark.

The latter species also has a chestnut underwing, but is shorter-tailed.

There are two colour morphs: The adult dark morph is all sooty brown, with black underwing coverts.

The light morph is more like a juvenile Eurasian Hobby, but has buff underparts, and also shows the contrast between the black underwing coverts and paler base to the flight feathers.

Auratus is from the Latin root aurat, meaning " gold " or " golden " and refers to the bird's underwing.

The underwing and undertail coverts are blackish, the eyes are brown, the small bill is mainly black, and the legs are brownish-pink.

Compared to the Eurasian Curlew, the Slender-billed Curlew is whiter on the breast, tail and underwing, and the bill is shorter, more slender, and slightly straighter at the base.

The two underwing hardpoints can also be fitted with unguided rocket pods or 300 US gal ( 1, 136 l ) fuel tanks.

| bombs = Total of 8, 000 lb ( 3, 628 kg ) of payload can be mounted inside the internal bomb bay and on two underwing hardpoints, with the ability to carry a variety of bombs. Typically, the internal bomb bay can hold up to 9 500 lb ( 227 kg ) bombs, or 6 1, 000 lb ( 454 kg ) bombs, or 1 4, 000 lb ( 1, 814 kg ) bomb ; while the pylons can hold 4 500 lb ( 227 kg ) bombs, or 2 1, 000 lb ( 454 kg ) bombs. Nuclear Weapons: in addition to conventional ordnance, the Canberra was also type-approved for tactical nuclear weapon delivery, including the Mk 7, B28 ( Mod 2, 70 kiloton yield ) and B57 ( as part of a joint program with the United States ) plus Red Beard and the WE. 177A ( Mod A, 10 kiloton yield ) nuclear bombs.

The 20 mm cannons, also fitted to the Bf 109 in drag-producing underwing gun pods, were then supplemented with or replaced by the 30 mm MK 108 cannon, in slightly larger underwing pods, which could bring down a bomber with an average of one to three hits.

Very good views are needed to distinguish this species from other pratincoles, such as the very similar Collared Pratincole, which also has a chestnut underwing, and Black-winged Pratincole which shares the black upperwing flight feathers and lack of a white trailing edge to the wing.

It has white-pink feathers with a definite peachy glow, a slight yellow on the underwing and underside of the tail feathers and a large retractable recumbent crest which it raises when threatened, revealing hitherto concealed bright red-orange plumes to frighten potential attackers ( may also be raised in excitement, or other ' emotional ' displays ).

The underwing is similar to the Green-winged Teal also, but has a darker leading edge.

Some versions could also carry two 600 l underwing drop tanks.

The Barbary Falcon also bears some resemblance to the Lanner Falcon, but can be distinguished from that species at rest by the head-pattern, and in flight, by the proportions, flight action and underwing pattern.

The most striking identification features are the red flanks and underwing, and the creamy white stripe above the eye.

The axillaries and underwing coverts are white, whereas in the commoner bird they are mottled with grey.

When circling overhead, the white underwing of the bird becomes conspicuous.

During flight a V-shaped white rump patch and the silver-gray underwing linings are visible.

However, that species has a paler head and white axillaries on its underwing.

Other plumages resemble those of the smaller Lesser Frigatebird, but have whiter bellies and longer white underwing spurs.

Dark underwing with slim white fringes to coverts.

There are white stripes on the underwing and red combs over the eye.

All morphs have the white wing flash, which appears as a diagnostic double flash on the underwing.

Although the dark underwing and lack of a white trailing edge to the wing are diagnostic, these features are not always readily seen in the field, especially as the chestnut underwing of the Collared Pratincole appears black unless excellent views are obtained.

In flight, a white patch contrasts with the otherwise dark underwing.

Underparts are mainly white apart from a black cap ( that in some individuals extends to cover the eye ) and some dark underwing makings.

Wilson's Storm Petrel has a diffuse pale band along the upper wing coverts and lacks the distinctive white underwing lining.

Notes ( Wilson ’ s Storm-petrel with white stripes on the underwing ).

The remiges are blackish, as are the entire underwing and the white-tipped rectrices, while the upper-and undertail coverts are white.

The white underwing coverts are striking in flight.