- Lanceolated Warbler
- Large-billed Crow
- Large-footed Finch
- Laughing Dove
- Laughing Kookaburra
- Leaden Flycatcher
- Lemon-bellied Flyrobin
- Lesser Black-backed Gull
- Lesser Crested Tern
- Lesser Kestrel
- Lesser Scaup
- Lesser Striped Swallow
- Levaillant's Woodpecker
- Lewin's Honeyeater
- Little Bittern
- Little Blue Heron
- Little Corella
- Little Egret
- Little Grebe
- Little Gull
- Little Owl
- Little Pied Cormorant
- Little Ringed Plover
- Little Stint
- Little Tern
- Long-eared Owl
- Long-tailed Tit