The graph above shows the trend in probability of White-tailed Eagle pairs fledging chicks in Northwest Seaboard between 2012 and 2015.
| NHZ | Breeding parameter | Period | Years | Mean annual sample size + SE | Type of trend | Mean + SE |
|---|---|---|---|---|---|---|
| 3. Coll, Tiree & the Western Isles | Breeding pairs | 2000 - 2015 | 16 | N/A* | Linear increase | 11.4 + 1.7 |
| 3. Coll, Tiree & the Western Isles | Clutch size | 2002 - 2015 | 14 | 9.9 ± 1.2 | Stable | 1.5 ± 0.1 |
| 3. Coll, Tiree & the Western Isles | Hatching success | 2006 - 2015 | 10 | 14.4 ± 1.6 | Linear increase | 0.7 ± 0.0 |
| 3. Coll, Tiree & the Western Isles | Brood size | 2004 - 2015 | 12 | 8.7 ± 1.0 | Stable | 1.6 ± 0.1 |
| 3. Coll, Tiree & the Western Isles | Fledging success | 2008 - 2015 | 8 | 14.1 ± 1.6 | Linear increase | 0.7 ± 0.0 |
| 3. Coll, Tiree & the Western Isles | Number of fledglings | 2006 - 2015 | 10 | 8.7 ± 1.2 | Stable | 1.5 ± 0.1 |
| 4. North West Seaboard | Breeding pairs | 2008 - 2015 | 8 | N/A* | Stable | 5.4 ± 0.4 |
| 4. North West Seaboard | Clutch size | 2005 - 2015 | 11 | 3.6 ± 0.3 | Stable | 1.6 ± 0.1 |
| 4. North West Seaboard | Hatching success | – | – | – | N/A** | – |
| 4. North West Seaboard | Brood size | – | – | – | N/A** | – |
| 4. North West Seaboard | Fledging success | 2012 - 2015 | 4 | 4.8 ± 0.5 | Stable | 0.7 ± 0.1 |
| 4. North West Seaboard | Number of fledglings | – | – | – | N/A** | – |
| 6. Western Seaboard | Breeding pairs | 1986 - 2015 | 30 | N/A* | Linear increase | 17.2 ± 2.0 |
| 6. Western Seaboard | Clutch size | 1986 - 2015 | 30 | 12.9 ± 1.3 | Stable | 1.5 ± 0.0 |
| 6. Western Seaboard | Hatching success | 1995 - 2015 | 21 | 20.8 ± 1.6 | Stable | 0.7 ± 0.0 |
| 6. Western Seaboard | Brood size | 1991 - 2015 | 25 | 11.9 ± 1.3 | Stable | 1.5 ± 0.0 |
| 6. Western Seaboard | Fledging success | 1987 - 2015 | 29 | 15.3 ± 1.7 | Stable | 0.6 ± 0.0 |
| 6. Western Seaboard | Number of fledglings | 1995 - 2015 | 21 | 11.4 ± 1.4 | Stable | 1.4 ± 0.0 |
| 8. Western Highlands | Breeding pairs | 2010 - 2015 | 6 | N/A* | Stable | 4.3 ± 0.3 |
| 8. Western Highlands | Clutch size | – | – | – | – | – |
| 8. Western Highlands | Hatching success | – | – | – | – | – |
| 8. Western Highlands | Brood size | – | – | – | – | – |
| 8. Western Highlands | Fledging success | – | – | – | – | – |
| 8. Western Highlands | Number of fledglings | – | – | – | – | – |
| 14. Argyll West & Islands | Breeding pairs | 2010 - 2015 | 6 | N/A* | Linear increase | 5.5 ± 1.1 |
| 14. Argyll West & Islands | Clutch size | – | – | – | – | – |
| 14. Argyll West & Islands | Hatching success | – | – | – | – | – |
| 14. Argyll West & Islands | Brood size | – | – | – | – | – |
| 14. Argyll West & Islands | Fledging success | – | – | – | – | – |
| 14. Argyll West & Islands | Number of fledglings | – | – | – | – | – |