Colony Name
    
          Swains Island
    
      Atoll
    
          Swains Atoll
    
      EEZ
    
          American Samoa EEZ
    
      Island Name
    
          Swains Island
    
      Coordinates
    
          
    11° 3.3' S,
    171° 4.683' W
  
| Species | Period | Count | Derivation | Breeding Status | Data Source | Data Quality | 
|---|---|---|---|---|---|---|
| 1993 | (Present) | Confirmed | Poor | |||
| 1993 | (Present) | Confirmed | Poor | |||
| 1993 | (Present) | Confirmed | Poor | |||
| 1993 | (Present) | Confirmed | Poor | |||
| 1976 (Breeding) | 2000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1976 (Breeding) | 3000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1967  April (Breeding) | 1500-3000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1967  April (Breeding) | 350 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1967  April (Non-breeding) | 1 Individuals | Observed | Non-Breeding | Good | ||
| 1966  October (Breeding) | 1500-3000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  November (Breeding) | 1500-3000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  August (Non-breeding) | 40 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  October (Breeding) | 500-1000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  November (Breeding) | 500-1000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  February (Breeding) | 3000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  August (Breeding) | 40 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  October (Non-breeding) | 20 Individuals | Observed | Non-Breeding | Good | ||
| 1966  November (Non-breeding) | 1 Individuals | Observed | Non-Breeding | Good | ||
| 1966  February (Non-breeding) | 3 Individuals | Observed | Non-Breeding | Good | ||
| 1966  November (Non-breeding) | 4 Individuals | Observed | Potential Breeding | Good | ||
| 1966  February (Breeding) | 1500-3000 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  November (Breeding) | 350-400 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  August (Breeding) | 25 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1967  April (Breeding) | 350-400 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1966  February (Non-breeding) | 200 Individuals | Estimated (directly) | Confirmed | Good | ||
| 1976 (Breeding) | 300 Individuals | Estimated (directly) | Confirmed | Good |