- Lapland Longspur
- Laughing Gull
- Leach's Storm Petrel
- Least Sandpiper
- Lesser Black-backed Gull
- Lesser Grey Shrike
- Lesser Kestrel
- Lesser Spotted Woodpecker
- Lesser White-fronted Goose
- Lesser Whitethroat
- Lesser Yellowlegs
- Little Auk
- Little Bittern
- Little Bunting
- Little Bustard
- Little Crake
- Little Egret
- Little Grebe
- Little Gull
- Little Owl
- Little Ringed Plover
- Little Stint
- Little Tern
- Long-eared Owl
- Long-tailed Duck
- Long-tailed Jaeger
- Long-tailed Tit