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A harpy in Ulisse Aldrovandi's Monstrorum Historia, Bologna, 1642. A medieval depiction of a harpy as a bird-woman. The most celebrated story in which the harpies play a part is that of King Phineus of Thrace, who was given the gift of prophecy by Zeus. Angry that Phineus gave away the god's secret plan, Zeus punished him by blinding him and ...
The Accipitriformes (/ æ k ˌ s ɪ p ɪ t r ɪ ˈ f ɔːr m iː z /; from Latin accipiter 'hawk' and formes 'having the form of') are an order of birds that includes most of the diurnal birds of prey, including hawks, eagles, vultures, and kites, but not falcons.
Female bats use a variety of strategies to control the timing of pregnancy and the birth of young, to make delivery coincide with maximum food ability and other ecological factors. Females of some species have delayed fertilisation, in which sperm is stored in the reproductive tract for several months after mating.
The heaviest female white-tailed eagles can apparently weigh as much as 7.5 to 8 kg (17 to 18 lb) and even males can sometimes weigh up to 6.5 kg (14 lb), which would make the largest males perhaps the heaviest recorded modern male eagle, as male harpy and Philippine eagles (being more sexually dimorphic in favour of the female) are not known ...
Immature, Darién National Park This is a medium-to-large sized species of raptor but a fairly small eagle. [6] [15] In the ornate hawk-eagle, the sexes are similar in appearance and overlap in size but like most birds of prey do show reverse sexual dimorphism, in which females outsize males to the contrary of most non-raptorial birds.
Both sexes are involved with building the nests and bringing materials, but the male seems to be more involved in retrieving materials while the female arranges them in the structure. Chicks on nest. Clutch size varies from one to eight and is likely linked to food supply. The average clutch is three to four eggs, each 64 mm (2.5 in) long and ...
Image credits: historycoolkids The History Cool Kids Instagram account has amassed an impressive 1.5 million followers since its creation in 2016. But the page’s success will come as no surprise ...
While awaiting food at the nest, both the female and the young call out a penetrating, high kwee-kwee-kwee, that can border on incessant. [9] In disposition, the crowned eagle is considered nervous, constantly alert and on edge. [20] They are quite different from the oft-stately open country eagles such as the Aquila species.