Best photos of the month, May 2021.

Ruff | Olga Nemezhikova | 30

Eurasian Roller | Dmitriy Shevtsov | 28

Steppe Eagle | Anna Golubeva | 27

Trumpeter Finch | Dmitriy Shevtsov | 27

Booted Eagle | Anna Golubeva | 26

Hen Harrier | Nina Shteinbrenner | 23

Rufous-tailed Rock Thrush | Grigory Khasanov | 23

Wood Warbler | Anna Golubeva | 22

Slavonian Grebe | Igor Dvurekov | 22

Common Kestrel | Elena Shvydun | 22

White's Thrush | Vladimir Maer | 22

Thrush Nightingale | Anna Golubeva | 21

Demoiselle Crane | Alexey Sizov | 21

Black-tailed Godwit | Olga Nemezhikova | 21

Common Oystercatcher | Dmitriy Shevtsov | 20

Black-legged Kittiwake | Dmitriy Shevtsov | 20

Eurasian Roller | Dmitriy Shevtsov | 20

Wood Lark | Dmitriy Shevtsov | 20

Water Rail | Andrei Kiselev | 20

Spotted Redshank | Olga Nemezhikova | 20

Northern Parrotbill | Andrey Vyalkov | 19

Lesser Grey Shrike | Dmitriy Shevtsov | 19

Eurasian Hobby | Andrei Kiselev | 19

Egyptian Vulture | Khasan Zhurtov | 19

Eurasian Honey-Buzzard | Khasan Zhurtov | 19

Little Bustard | Andrey Semenov | 19

Black-headed Bunting | Maxim Lanin | 19

Blue Rock Thrush | Egor Vlasov | 19

Common Rosefinch | Elena Shvydun | 19

Great Spotted Cuckoo | Igor Sikorsky | 19

Siberian Thrush | Grigory Khasanov | 19

Willow Warbler | Anna Golubeva | 18

Eurasian Linnet | Dmitriy Shevtsov | 18

Northern Wheatear | Dmitriy Shevtsov | 18

Caucasian Grouse | Khasan Zhurtov | 18

Sharp-tailed Sandpiper | Alexander Rogal' | 18

Eurasian Whimbrel | Andrey Semenov | 18

Lammergeier | Egor Vlasov | 18

Glossy Ibis | Svetlana Medvedeva | 18

Curlew Sandpiper | Svetlana Medvedeva | 18

Icterine Warbler | Elena Shvydun | 18

Greenish Warbler | Elena Shvydun | 18

European Nightjar | Alexey Sizov | 18

Red-necked Phalarope | Andrei Kiselev | 17

Water Rail | Andrei Kiselev | 17

Hoopoe | Andrei Kiselev | 17

Lesser Spotted Eagle | Khasan Zhurtov | 17

Eurasian Honey-Buzzard | Khasan Zhurtov | 17

Montagu's Harrier | Dmitry Pozharsky | 17

Western Grasshopper Warbler | Andrey Semenov | 17

Kentish Plover | Maxim Lanin | 17

Eurasian Roller | Maxim Lanin | 17

Rosy Starling | Egor Vlasov | 17

Red-footed Falcon | Svetlana Medvedeva | 17

Common Cuckoo | Elena Shvydun | 17

Common Chiffchaff | Michael Nevski | 17

Yellow Wagtail | Michael Nevski | 17

Pallas's Sandgrouse | Denis Zhbir | 17

Pied Flycatcher | Anna Golubeva | 16

Whinchat | Anna Golubeva | 16

Yellowhammer | Anna Golubeva | 16

Purple-backed Starling | Dmitry Korobov | 16

Common Kestrel | Dmitry Korobov | 16

Pied Avocet | Dmitry Korobov | 16

Tawny Pipit | Dmitriy Shevtsov | 16

Ortolan Bunting | Dmitriy Shevtsov | 16

European Robin | Dmitriy Shevtsov | 16

Eurasian Collared Dove | Dmitriy Shevtsov | 16

Tawny Pipit | Dmitriy Shevtsov | 16

Terek Sandpiper | Andrei Kiselev | 16

Marsh Sandpiper | Andrei Kiselev | 16

European Bee-eater | Khasan Zhurtov | 16

Oriental Pratincole | Irina Malykina | 16

Smew | Dmitry Pozharsky | 16

Icterine Warbler | Andrey Semenov | 16

Red-footed Falcon | Egor Vlasov | 16

Short-toed Snake-Eagle | Egor Vlasov | 16

Thrush Nightingale | Elena Shvydun | 16

Red-breasted Flycatcher | Elena Shvydun | 16

Spotted Nutcracker | Elena Shvydun | 16

Northern Wren | Michael Nevski | 16

Thrush Nightingale | Michael Nevski | 16

Great Snipe | Alexey Sizov | 16

Common Teal | Olga Nemezhikova | 16

Eurasian Wryneck | Anna Golubeva | 15

Common Tern | Anna Golubeva | 15

Black-winged Stilt | Andrey Vyalkov | 15

Eurasian Dipper | Dmitriy Shevtsov | 15

Red-backed Shrike | Dmitriy Shevtsov | 15

Northern Wheatear | Dmitriy Shevtsov | 15

Tawny Pipit | Dmitriy Shevtsov | 15

Northern House Martin | Dmitriy Shevtsov | 15

Common Oystercatcher | Andrei Kiselev | 15

White-winged Tern | Andrei Kiselev | 15

Temminck's Stint | Andrei Kiselev | 15

European Bee-eater | Andrey Semenov | 15

Corncrake | Andrey Semenov | 15

Isabelline Wheatear | Maxim Lanin | 15

Northern Lapwing | Maxim Lanin | 15

European Bee-eater | Maxim Lanin | 15

Lesser Short-toed Lark | Egor Vlasov | 15

Broad-billed Sandpiper | Nataliya Pokhodzey | 15

Common Sandpiper | Elena Shvydun | 15

European Golden Oriole | Elena Shvydun | 15

Blyth's Reed Warbler | Michael Nevski | 15

Pied Flycatcher | Michael Nevski | 15

Griffon Vulture | Alexey Sizov | 15

Yellowhammer | Evgeniy Perevedentsev | 15

Barred Warbler | Alexandr Balaev | 15

Bluethroat | Vladimir Maer | 15

European Bee-eater | Vladimir Maer | 15

Spotted Crake | Aleksey Bolshakov | 15

Siberian Jay | Grigory Khasanov | 15

Common Greenshank | Olga Nemezhikova | 15

Western Grasshopper Warbler | Dmitriy Shevtsov | 14

Little Ringed Plover | Dmitriy Shevtsov | 14

Eurasian Blackbird | Dmitriy Shevtsov | 14

Northern House Martin | Dmitriy Shevtsov | 14

Savi's Warbler | Andrei Kiselev | 14

Sky Lark | Andrei Kiselev | 14

Terek Sandpiper | Andrei Kiselev | 14

Little Tern | Andrei Kiselev | 14

Western Marsh-Harrier | Khasan Zhurtov | 14

Black-winged Stilt | Khasan Zhurtov | 14

Caucasian Grouse | Khasan Zhurtov | 14

Griffon Vulture | Evgeniy Sofronov | 14

Yellow Wagtail | Dmitry Pozharsky | 14

Eurasian Spoonbill | Andrey Semenov | 14

Demoiselle Crane | Maxim Lanin | 14

Great Cormorant | Maxim Lanin | 14

Eurasian Spoonbill | Maxim Lanin | 14

Red-footed Falcon | Maxim Lanin | 14

Red-crested Pochard | Maxim Lanin | 14

Common Oystercatcher | Vladislav Iopek | 14

Long-tailed Tit | Igor Dvurekov | 14

Eurasian Roller | Egor Vlasov | 14

Purple Heron | Svetlana Medvedeva | 14

Barred Warbler | Svetlana Medvedeva | 14

Marsh Warbler | Michael Nevski | 14

Little Owl | Vitaliy Butko | 14

Blue Rock Thrush | Alexey Sizov | 14

Eurasian Stone Curlew | Alexey Sizov | 14

Collared Pratincole | Alexey Sizov | 14

Great White Pelican | Alexey Sizov | 14

Rosy Starling | Alexey Sizov | 14

Song Thrush | Tatiana Dudarenko | 14

Short-eared Owl | Dmitry Dubikovskiy | 14

Willow Ptarmigan | Igor Dvurekov | 14

Mandarin Duck | Grigory Khasanov | 14

Baillon's Crake | Grigory Khasanov | 14

Oriental Cuckoo | Denis Voronov | 14

Grey Wagtail | Olga Nemezhikova | 14