| The population of birds |
|---|
 |
This is a list of Cuculiformes species by global population. While numbers are estimates, they have been made by the experts in their fields. For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology.
This list is incomprehensive, as not all Cuculiformes have had their numbers quantified.
| Common name | Binomial name | Population | Status | Trend | Notes | Image |
|---|---|---|---|---|---|---|
| Black-hooded coucal | Centropus steerii | 50-249 [1] | CR [1] |  [1] | ||
| Sumatran ground cuckoo | Carpococcyx viridis | 50-249 [2] | CR [2] | [2] | ||
| Cocos cuckoo | Coccyzus ferrugineus | 250-999 [3] | VU [3] |  [3] | The total population is probably significantly below 1,000 individuals. [3] | |
| Banded ground cuckoo | Neomorphus radiolosus | 2,500-12,000 [4] | VU [4] | [4] |  | |
| Bay-breasted cuckoo | Coccyzus rufigularis | 300-2,900 [5] | EN [5] | [5] | ||
| Green-billed coucal | Centropus chlororhynchus | 2,500-9,999 [6] | VU [6] | [6] | The population is unlikely to number more than a few thousand individuals. [6] |  |
| Red-faced malkoha | Phaenicophaeus pyrrhocephalus | 2,500-9,999 [7] | VU [7] | [7] | Recent study suggests the population size may now be no greater than several hundred individuals. [7] |  |
| Sunda coucal | Centropus nigrorufus | 2,500-9,999 [8] | VU [8] | [8] |  | |
| Biak coucal | Centropus chalybeus | 10,000 – 19,999 [9] | NT [9] | [9] | No population estimates are available. [9] | |
| Moluccan cuckoo | Cacomantis aeruginosus | 6,000-15,000 [10] | LC [10] | [10] | ||
| Short-toed coucal | Centropus rectunguis | 15,000 – 30,000 [11] | VU [11] | [11] | The global population size has not been quantified but is believed to be large given the range and frequency of records in suitable habitat. [11] | |
| Violaceous coucal | Centropus violaceus | 6,700-61,000 [12] | LC [12] | [12] | ||
| Lesser ground cuckoo | Morococcyx erythropygus | 50,000-499,999 [13] | LC [13] | [13] |  | |
| Pheasant cuckoo | Dromococcyx phasianellus | 50,000-499,999 [14] | LC [14] | [14] |  | |
| Great spotted cuckoo | Clamator glandarius | 3,000,000-10,499,999 [15] | LC [15] | [15] |  | |
| Lesser roadrunner | Geococcyx velox | 500,000-4,999,999 [16] | LC [16] | [16] |  | |
| Striped cuckoo | Tapera naevia | 500,000-4,999,999 [17] | LC [17] | [17] |  | |
| Squirrel cuckoo | Piaya cayana | 5,000,000 – 50,000,000 [18] | LC [18] | [18] | The global population has not been quantified due to recent taxonomic splits. [18] |  |
| Mexican squirrel cuckoo | Piaya mexicana | 5,000,000 – 50,000,000 [19] | LC [19] | [19] | The global population has not been quantified due to recent taxonomic splits. [19] | |
| Common cuckoo | Cuculus canorus | 34,600,000-54,400,000 [20] | LC [20] | [20] | Preliminary estimate. [20] |  |
