Lagopus lagopus (Willow Grouse)
Lanius collurio (Red-backed Shrike)
Lanius excubitor (Great Grey Shrike)
Lanius meridionalis (Southern Grey Shrike)
Lanius minor (Lesser Grey Shrike)
Lanius nubicus (Masked Shrike)
Lanius senator (Woodchat Shrike)
Larus argentatus (Herring Gull)
Larus audouinii (Audouin's Gull)
Larus cachinnans (Yellow-legged Gull)
Larus fuscus (Lesser Black-backed Gull)
Larus genei (Slender-billed Gull)
Larus glaucoides (Iceland Gull)
Larus hyperboreus (Glaucous Gull)
Larus marinus (Great Black-backed Gull)
Larus melanocephalus (Mediterranean Gull)
Larus ridibundus (Black-headed Gull)
Limicola falcinellus (Broad-billed Sandpiper)
Limosa lapponica (Bar-tailed Godwit)
Limosa limosa (Black-tailed Godwit)
Locustella fluviatilis (River Warbler)
Locustella lanceolata (Lanceolated Warbler)
Locustella luscinioides (Savi's Warbler)
Locustella naevia (Grasshopper Warbler)
Loxia curvirostra (Common Crossbill)
Loxia leucoptera (Two-barred Crossbill)
Loxia pytyopsittacus (Parrot Crossbill)
Loxia scotica (Scottish Crossbill)
Luscinia luscinia (Thrush Nightingale)