Cuculidae
- Black-billed Cuckoo Coccyzus erythropthalmus
- Yellow-billed Cuckoo Coccyzus americanus
- Mangrove Cuckoo Coccyzus minor
- Cocos Island Cuckoo Coccyzus ferrugineus Cocos Islands only Vulnerable
- Squirrel Cuckoo Piaya cayana
- Smooth-billed Ani Crotophaga ani
- Groove-billed Ani Crotophaga sulcirostris
- Striped Cuckoo Tapera naevia
- Pheasant Cuckoo Dromococcyx phasianellus
- Lesser Ground Cuckoo Morococcyx erythropygus
- Rufous-vented Ground Cuckoo Neomorphus geoffroyi
Read more about this topic: List Of Birds Of Costa Rica