Owl Judging from this, the Late Miocene remains from France described as ""Ardea" aureliensis" should also be restudied. The Messelasturidae, some of which were initially believed to be basal Strigiformes, are now generally accepted to be diurnal birds of prey showing some convergent evolution towards owls. The taxa often united under "Strigogyps" were formerly placed in part with the owls, specifically the Sophiornithidae; they appear to be Ameghinornithidae instead. For fossil species and paleosubspecies of extant taxa, see the genus and species articles. Unresolved and basal forms (all fossil) Fossil genera Placement unresolved Extinct Genus Fossil genera Placement unresolved Among the
Gleaning (birds) behavior is called "hover-gleaning". Other birds are more methodical in their approach to gleaning, even seeming lethargic as they perch upon and deliberately pick over foliage. This behavior is characteristic of the bay-breasted warbler and many vireos. Another tactic is to hang upside-down from the tips of branches to glean the undersides of leaves. Tits such as the familiar black-capped chickadee are often observed feeding in this manner. Some birds, like the ruby-crowned kinglet and red-eyed vireo of North America use a combination of these tactics. Gleaning birds are typically small with compact bodies and have small, sharply pointed bills.