| English | Portuguese |
| Atlantic little tuna | merma (Euthynnus alletteratus, Euthynnus spp.) |
| Eastern little tuna | merma oriental (Euthynnus affinis) |
| least bittern | garça-pequena-vermelha (Ixobrychus exilis) |
| least sandpiper | pilrito-minúsculo (Calidris minutilla) |
| little auk | torda-anã (Alle alle) |
| little bee-eater | merops pusillus (Merops pusillus, merops pusillus) |
| little bee-eater | abelharuco-dourado (Merops pusillus, merops pusillus) |
| little bittern | garça-pequena (Ixobrychus minutus) |
| little blue heron | garça-azul (FLorida caerulea, Hydranassa caerulea) |
| little blue macaw | arara-de-spix (Cyanopsitta psixii) |
| little bluebonnet | periquito-de-naretha (Psephotus haematogaster narethae) |
| little bunting | escrevedeira-pigmeia (Emberiza pusilla) |
| little bustard | sisão (Otis tetrax, Tetrax tetrax) |
| little curlew | maçarico-anão (Numenius minutus) |
| little egret | garça-branca-pequena (Egretta garzetta) |
| little grebe | mergulhão-pequeno (Podiceps ruficollis, Tachybaptus ruficollis) |
| little green bee-eater | abelharuco-verde (Merops orientalis) |
| little gull | gaivota-pequena (Larus minutus) |
| little owl | mocho-galego (Athena noctua) |
| little piked whale | baleia-anã (Balaenoptera acutorostrata) |
| little quakinggrass | bule-bule-menor (Briza minor Lin., Briza minor) |
| little ringed plover | borrelho-pequeno-de-coleira (Charadrius dubius) |
| little shearwater | pardela-pequena (Puffinus assimilis) |
| little sparrow hawk | gavião-pequeno (Accipiter minulus, accipiter minulus) |
| little sparrow hawk | Accipiter minulus (Accipiter minulus, accipiter minulus) |
| little spotted cat | ocelote pequeno tigrado (Felis tigrina oncilla, Leopardus tigrina) |
| little stint | pilrito-pequeno (Calidris minuta) |
| little swift | guincho-pequeno (apus affinis) |
| little swift | apus affinis |
| little swift | andorinhão-pequeno (Apus affinis) |
| little tern | andorinha-do-mar-anã (Sterna albifrons) |
| little weaver | tecelão-de-peito-preto (Ploceus luteolus) |
| Schrenck's little bittern | garça-pequena de Schrenck (Ixobrychus eurhythmus) |
| tail-less amphibians | anuros (Anura, Salientia) |
