- Laughing Dove
- Laughing Gull
- Least Sandpiper
- Lesser Antillean Bullfinch
- Lesser Black-backed Gull
- Lesser Crested Tern
- Lesser Flamingo
- Lesser Yellowlegs
- Lesson's Motmot
- Lilac-breasted Roller
- Little Blue Heron
- Little Cormorant
- Little Egret
- Little Stint
- Little Swift
- Loggerhead Shrike
- Long-billed Hermit
- Long-tailed Glossy Starling