gujanensis: Dendrocolaptidae (Donatelli, 1997); Furnariidae (Donatelli and Marceliano, 2007); Drepanididae
(Richards and Bock, 1973); Vireonidae (Orenstein and Barlow, 1981).
Perhaps one of the most spectacular examples of adaptive radiation is shown by the Hawaiian honeycreepers (Drepanididae), a monophyletic group of passerine birds that appear to be phylogenetically related to the goldfinches.
191 The first finches, the ancestors of the honeycreepers (Drepanididae), must have been blown to Hawaii by a hurricane, as otherwise these small birds would have been unable to cross the 1,864 mi (3,000 km) separating the islands from the American coastline.
In the absence of additional information, species with large flowers of various colors, but usually zygomorphic and curved with nectar were classified as bird pollinated [presumably by Hawaiian honeycreepers (Drepanididae
) and honeyeaters (Meliphagidae)]; species with generally small flowers, usually white or green, with nectar and/or abundant pollen were classified as insect pollinated (bees, flies, butterflies, and moths); and species with usually small flowers with easily dislodged pollen or well-exposed anthers (e.g., Coprosma) and little or no nectar were classified as wind pollinated.
Although the Poo-uli was originally identified as part of the honeycreeper family (Drepanididae
), Pratt and other ornithologists noticed that it lacks many characteristics that define these songbirds.