Sánchez Marco, Antonio (2004). "Avian zoogeographical patterns during the Quaternary in the Mediterranean region and paleoclimatic interpretation" (PDF). Ardeola. 51 (1): 91–132. Archived (PDF) from the original on 9 October 2022. Gerald Mayr. "The world's smallest owl, the earliest unambiguous charadriiform bird, and other avian remains from the early Eocene Nanjemoy Formation of Virginia (USA)" (PDF). Phatfossils.com. Archived (PDF) from the original on 9 October 2022 . Retrieved 24 March 2022. Behavior Comparison of an owl (left) and hawk (right) remex. The serrations on the leading edge of an owl's flight feathers reduce noise Owl eyes each have nictitating membranes that can move independently of each other, as seen on this spotted eagle-owl in Johannesburg, South Africa.

RPS Group

Ian Hayward (27 July 2007). "Ask an expert: Are barn owl feathers waterproof?". RSPB . Retrieved 29 December 2015.Different species of owls produce different sounds; this distribution of calls aids owls in finding mates or announcing their presence to potential competitors, and also aids ornithologists and birders in locating these birds and distinguishing species. As noted above, their facial discs help owls to funnel the sound of prey to their ears. In many species, these discs are placed asymmetrically, for better directional location.

Support | Wearev1

T. F. Thiselton-Dyer, in his 1883 Folk-lore of Shakespeare, says that "from the earliest period it has been considered a bird of ill-omen," and Pliny tells us how, on one occasion, even Rome itself underwent a lustration, because one of them strayed into the Capitol. He represents it also as a funereal bird, a monster of the night, the very abomination of humankind. Virgil describes its death howl from the top of the temple by night, a circumstance introduced as a precursor of Dido's death. Ovid, too, constantly speaks of this bird's presence as an evil omen; and indeed the same notions respecting it may be found among the writings of most of the ancient poets." [61] A list of "omens drear" in John Keats' Hyperion includes the "gloom-bird's hated screech." [62] Pliny the Elder reports that owls' eggs were commonly used as a hangover cure. [63] Technical and consulting services for buildings, infrastructure and cities including architecture, engineering, surveying, landscape architecture and urban design.Norberg, R.A. (31 August 1977). "Occurrence and independent evolution of bilateral ear asymmetry in owls and implications on owl taxonomy". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 280 (973): 375–408. Bibcode: 1977RSPTB.280..375N. doi: 10.1098/rstb.1977.0116. Stevenson, John (18 November 2020). "Small finlets on owl feathers point the way to less aircraft noise". Phys.org . Retrieved 20 November 2020. Around the Paleogene-Neogene boundary (some 25 Mya), barn owls were the dominant group of owls in southern Europe and adjacent Asia at least; the distribution of fossil and present-day owl lineages indicates that their decline is contemporary with the evolution of the different major lineages of true owls, which for the most part seems to have taken place in Eurasia. In the Americas, rather, an expansion of immigrant lineages of ancestral typical owls occurred.