| Billed (imp. & p. p.) of Bill |
| Billed (a.) Furnished with, or having, a bill, as a bird |
| Duck-billed (a.) Having a bill like that of a duck. |
| Hook-billed (a.) Having a strongly curved bill. |
| Slender (superl.) Small or narrow in proportion to the length or the height |
| Slender (superl.) Weak |
| Slender (superl.) Moderate |
| Slender (superl.) Small |
| Slender (superl.) Spare |
| Slender (superl.) Uttered with a thin tone |
| weaver / weaverbird / weaver finch finch-like African and Asian colonial birds noted for their elaborately woven nests |
| long-billed marsh wren / Cistothorus palustris American wren that inhabits tall reed beds |
| sedge wren short-billed marsh wren / Cistothorus platensis small American wren inhabiting wet sedgy meadows |
| slender salamander / worm salamander any of several small slim salamanders of the Pacific coast of the United States |
| hadrosaur / hadrosaurus / duck-billed dinosaur any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet, may have been partly aquatic |
| Argiopidae / family Argiopidae / orb-weaver spiders that spin orb webs, cosmopolitan in distribution |
| black-billed cuckoo / Coccyzus erythropthalmus North American cuckoo, builds a nest and rears its own young |
| ivorybill / ivory-billed woodpecker / Campephilus principalis large black-and-white woodpecker of southern United States and Cuba having an ivory bill, nearly extinct |
| platypus / duckbill duckbilled platypus / duck-billed platypus / Ornithorhynchus anatinus small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet, only species in the family Ornithorhynchidae |
| boatbill / boat-billed heron / broadbill Cochlearius cochlearius tropical American heron related to night herons |