- Lanner Falcon
- Large-billed Crow
- Large-billed Tern
- Large Rock Martin
- Lark-like Brushrunner
- Lark Sparrow
- Laughing Dove
- Laughing Gull
- Laughing Kookaburra
- Lava Gull
- Lawes's Parotia
- Lemon-bellied White-eye
- Lemon-rumped Tanager
- Lesser Blue-eared Starling
- Lesser Flamingo
- Lesser Goldfinch
- Lesser Kiskadee
- Lesser Masked Weaver
- Lesser Nighthawk
- Lesser Spotted Eagle
- Lesser Striped Swallow
- Lesser Violetear
- Lesson's Motmot
- Lilac-breasted Roller
- Limpkin
- Lineated Woodpecker
- Little Bee-eater
- Little Black Cormorant
- Little Blue Heron
- Little Corella
- Little Cormorant
- Little Cuckoo
- Little Egret
- Little Friarbird
- Little Grebe
- Little Heron
- Little Pied Cormorant
- Little Ringed Plover
- Little Sparrowhawk
- Livingstone's Turaco
- Loggerhead Shrike
- Long-billed Hermit
- Long-billed Woodcreeper
- Long-tailed Silky-flycatcher
- Long-tailed Sylph
- Long-tailed Tyrant
- Long-toed Lapwing