- The Okhla Bird Sanctuary is located in Noida, Gautam Buddh Nagar district of Uttar Pradesh, India.
- It is situated at the Okhla Barrage over Yamuna River near Delhi-Uttar Pradesh state border.
- It is also known as the Okhla Bird Reserve.
- It is home to over 300 bird species, including both terrestrial and water birds.
- The bird sanctuary is among the wetlands falling in the Central Asian Flyway.
- In 1943 to 1945, Major-General H. P. W. Hutson conducted ornithological surveys in the Delhi region, including Okhla.
- In 1986, the construction of a barrage and the subsequent formation of a lake significantly transformed the Okhla area.
- In 1990, the Government of Uttar Pradesh designated an area of 4 square kilometers along the river Yamuna as a bird sanctuary under the Wildlife Protection Act, 1972.
- Area: It covers an area of about 4 square kilometers.
- River: The Okhla Bird Sanctuary is situated along the banks of the Yamuna River.
- Lake: The bird sanctuary features a lake (Okhla Barrage) that was formed as a result of the construction of a barrage on the Yamuna River in 1986.
- Flora: The flora found in the Okhla Bird Sanctuary are:
- Aquatic Plants (water hyacinth, lotus, water lilies, and submerged plants like Vallisneria and Hydrilla),
- Marshland Vegetation (reeds, cattails, bulrushes, and sedges),
- Riparian Vegetation (Banyan, Peepal, Neem, Babul, Indian rosewood, ber, and jujube),
- Grasses and Herbs (elephant grass, bulrush grass, Bermuda grass, and various wildflowers).
- Birds: White-rumped Vulture, Indian Vulture, Baer’s Pochard, Indian Skimmer, Sarus Crane, Common Teal, Lesser Adjutant, Black-tailed Godwit, Eurasian Wigeon, Pallas’s Fish Eagle, Sociable Lapwing, Greater Flamingo, Northern Shoveler, Common Greenshank, Ruddy Shelduck, Northern Pintail, Baikal Teal, Marsh Sandpiper, Black-necked Stork, Bar-headed Goose, Pied Avocet, Common Sandpiper etc.