--- title: Eagles: golden eagles, harpy eagles, Steller's sea eagles and eagle eyes — a lesson of Mova's school · trees and pragmatics description: «Eagles: golden eagles, harpy eagles, Steller's sea eagles and eagle eyes», a lesson of the biology course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Eagles are big birds of prey: hunters with hooked beaks, huge feet and amazing eyes. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / Eagles: golden eagles, harpy eagles, S… # Eagles: golden eagles, harpy eagles, Steller's sea eagles and eagle eyes Lesson 323 of the biology course of Mova's primary school: 16 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/0/) — Eagles are big birds of prey: hunters with hooked beaks, huge feet and amazing eyes. - [1](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/1/) — They kill with their feet and use the beak only to tear food. - [2](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/2/) — Picture a golden eagle high over a mountain. - [3](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/3/) — It spots a hare far below, folds its wings and drops like a stone at well over 200 kilometres an hour, then swings its talons forward at the last moment. - [5](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/5/) — Eagles also fill films and stories with myths: the screaming «eagle» call is usually a hawk, and eagles snatching children are tales and fake videos, because even a big eagle can carry only a few kilograms. - [6](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/6/) — Golden eagles hunt hares, rabbits and marmots on open hills and mountains, and in a steep dive one can reach well over 200 kilometres an hour. - [7](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/7/) — An eagle's foot has four talons, three forward and one back, and the back talon is often the biggest and works like a thumb to pin prey. - [8](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/8/) — Eagles kill with their feet; the beak is for tearing food. - [9](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/9/) — Harpy eagles raise only one chick every two or three years, so they come back very slowly when they are hunted or their forest is cut. - [10](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/10/) — The Steller's sea eagle, with a giant orange beak, is one of the heaviest eagles at up to about 9 kilograms; it nests in Russia's far east and many winter in Japan, catching fish. - [11](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/11/) — Eagle eyes are about as big as yours, and the back of each eye has far more light-sensing cells than ours and two extra-sharp spots instead of one. - [12](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/12/) — The wild scream given to bald eagles in films is usually the call of a red-tailed hawk; a real bald eagle gives weak, high chirps. - [13](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/13/) — Eagles often use the same nest year after year and add sticks each time; a bald eagle nest in Florida was reported to weigh about 2 tonnes, as much as a car. - [14](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/14/) — A famous video of an eagle snatching a small child was a computer fake, and even big eagles can usually carry only a few kilograms. - [15](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/15/) — Only a few hundred pairs of Philippine eagles are thought to live in the forests of the Philippines, made rare by forest cutting and hunting; it is the national bird and protected by law. - [16](https://md.mova.elamur.ai/free/en/corpora/school/biology/323-eagles-golden-eagles-harpy-eagles-stellers-sea-eagles-and-eagle-eyes/16/) — Kazakh eagle hunters in Mongolia have trained golden eagles to hunt foxes and hares for many hundreds of years, and they mostly use females because female eagles are bigger and stronger. - ← previous: [Snakes to keep away from: cobras, mambas, vipers and rattlesnakes](https://md.mova.elamur.ai/free/en/corpora/school/biology/322-snakes-to-keep-away-from-cobras-mambas-vipers-and-rattlesnakes/) - next →: [Falcons, hawks, kites, ospreys and vultures](https://md.mova.elamur.ai/free/en/corpora/school/biology/324-falcons-hawks-kites-ospreys-and-vultures/) - ↑ back to [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/)