Lesser racket-tailed drongo 
Lesser redpoll 
lesser short toed lark 
Lesser Shortwing 
Lesser striped swallow 
Lesser swamp warbler 
Lesser Whitethroat 
Levaillants Cisticola 
Lewin's Honeyeater 
Leymebamba Antpitta 
Light-vented bulbul 
Lincoln's sparrow 
Lineated Foliage-Gleaner 
Lined antshrike 
Lined Seedeater 
Little forktail 
Little Friarbird 
Little green sunbird 
Little Inca finch 
Little Pied Flycatcher 
Little Raven 
Little rock thrush 
Little Spiderhunter 
Little Wattlebird