| Island «Borok» | |
|---|---|
| Natural Monuments of Russia | |
| Natural Monument (IUCN III) | |
| Country | Russia |
| Oblast | Ulyanovsk |
| Districts | Melekess region, Kuibyshev a water basin, Cheremshan a gulf |
| Village | Nikolskoe on Cheremshan |
| Location | |
| - coordinates | |
| Area | 0.0019 km2 (0 sq mi) |
| Biome | Ecosystem, protected kinds, a colony of grey herons |
| Natual Monument of Russia | 1989 |
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Ostrov Borok (Russian: Остров “Борок”) is a natural monument listed among the protected areas of Ulyanovsk Oblast in Russia.
The territory is heavily forested, and its trees are home to a large colony of gray herons, with 403 breeding pairs. The nitrogen-rich soil produces nettles and celandine in large quantities. Birds are common here, including black hawk, cheglok, sea-eagle, vyakhir, coast swallow, the eastern Zavirushka bluebird, finches, seagulls, krachki. This is also the habitat of the quick lizard and raccoon dogs.
Felling trees is forbidden in this territory and human visits are limited to fishermen, hunters, and scientists observing the biocenosis.
On island "Borok" one of the grey herons largest a colony (about 400 pairs) is located. See eagles belokhvosts, pair black kites and cheglokov, black-headed merry fellows live. See eagle-belokhvost and black-headed merry fellow are brought in the Red book of Russia.