Lafresnayes vanga 
Lance-tailed manakin 
Landana firefinch 
Lapland longspur 
Large cuckooshrike 
Large grey 
Large Niltava 
Large scrubwren 
Large tree finch 
Large-billed gerygone 
Large-billed leaf warbler 
Large-footed finch 
Large-footed tapaculo 
Large-headed flatbill 
Lark bunting 
Lark sparrow 
Lark-like bunting 
layard's warbler 
Lazuli bunting 
Lazy cisticola 
Leaden antwren 
Leaden Flycatcher 
Least flycatcher 
LeConte's Thrasher