Best photos of the month, May 2017.

Northern Black Grouse | Galina Katanova | 8

Common Kestrel | Oksana Raldugina | 8

Menetries Warbler | Alexander Yakovlev | 7

Corncrake | Evgeniy Sofronov | 7

Willow Warbler | Andrei Kiselev | 6

Ortolan Bunting | Evgeniy Sofronov | 6

Common Kingfisher | Evgeniy Sofronov | 6

Corncrake | Evgeniy Sofronov | 6

Ring Ouzel | Anna Golubeva | 5

Eurasian Honey-Buzzard | Anna Golubeva | 5

Spotted Flycatcher | Igor Shcherbakov | 5

Isabelline Wheatear | Oksana Raldugina | 5

Collared Pratincole | Oksana Raldugina | 5

Rufous-tailed Rock Thrush | Alexander Yakovlev | 4

Hybrid (Red-head x Black-head) Bunting | Anna Golubeva | 4

Rufous-tailed Rock Thrush | Anna Golubeva | 4

Song Thrush | Ekaterina Zvereva | 4

Long-eared Owl | Andrei Kiselev | 4

Common Raven | Dmitry Pozharsky | 4

Pied Flycatcher | Dmitry Pozharsky | 4

Bluethroat | Dmitry Pozharsky | 4

Citrine Wagtail | Dmitry Khrushchev | 4

Eurasian Penduline Tit | Oksana Raldugina | 4

Red-footed Falcon | Andrey Semenov | 4

Isabelline Wheatear | Oksana Raldugina | 4

Northern Black Grouse | Galina Katanova | 4