- Lepus timidus Linnaeus
- Limosa limosa Linnaeus
- Lissotriton vulgaris Linnaeus
- Locustella fluviatilis Wolf
- Locustella luscinioides Savi
- Locustella naevia Boddaert
- Loxia curvirostra Linnaeus
- Luscinia luscinia Linnaeus
- Luscinia svecica Linnaeus
- Lyrurus tetrix Linnaeus
- Martes martes Linnaeus
- Melanitta fusca Linnaeus
- Mergellus albellus Linnaeus
- Mergus merganser Linnaeus
- Mergus serrator Linnaeus
- Micromys minutus Pallas
- Microtus agrestis Linnaeus
- Microtus arvalis Pallas
- Microtus oeconomus Pallas
- Microtus subterraneus de Sélys-Longchamps
- Milvus migrans Boddaert
- Motacilla alba Linnaeus
- Motacilla citreola Pallas
- Motacilla flava Linnaeus
- Mus musculus Linnaeus