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Flight feather: Quiz

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Question 1: [1] Corresponding remiges on individual birds are symmetrical between the two wings, matching to a large extent in size and shape (except in the case of ________ or damage), though not necessarily in pattern.
MutationPopulation geneticsSpeciationEvolution

Question 2: They vary in number from 6 in hummingbirds to as many as 40 in some species of ________.
ProcellariiformesAlbatrossSeabirdProcellariidae

Question 3: [10] ________, grebes, pelicans, hawks and eagles, cranes, sandpipers, gulls, parrots, and owls are among the families missing this feather.
LoonProcellariiformesPenguinPasserine

Question 4: [8] While most modern ________ have ten primaries,[7] some have only nine.
ParrotPasserineBirdLoon

Question 5: The development of the remiges (and alula) of nestling ________ is much delayed compared to the development of these feathers in other young birds, presumably because young Hoatzins are equipped with claws on their first two digits.
GrebeHoatzinCaprimulgiformesGalliformes

Question 6: This adaptation is also found, though to a lesser extent, in some other species that feed along tree trunks, including ________ and treecreepers.
XiphorhynchusOvenbird (family)WoodcreeperLafresnaye's Woodcreeper

Question 7: Some, such as the ________ and a number of the flightless rails, have a reduced number of primaries.
Atitlan GrebeTiticaca GrebeSilvery GrebeBlack-necked Grebe

Question 8: Eleven families of birds, including ________, grebes and most waterfowl, have this moult strategy.
PasserineLoonPenguinProcellariiformes

Question 9: The outermost pair of rectrices in male ________ are extremely long and strongly curved at the ends.
Australian MagpieLyrebirdSuperb LyrebirdPasserine

Question 10: Flight feathers are the long, stiff, asymmetrically shaped, but symmetrically paired feathers on the wings or tail of a ________; those on the wings are called remiges (singular remex) while those on the tail are called rectrices (singular rectrix).
ArchaeopteryxModern birdsEnantiornithesBird







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