SLAVONIAN GREBE
The largest group of this species seen together in the county is of 3 birds and was observed at Pennington Flash, on the 14th March 1944.
The longest staying individual in the county lasted an incredible 144 days after it's initial arrival at Pennington Flash on the 5th November 1994.
| 1874 | Elton Reservoir | |||
| 1943 | Pennington Flash | 16th Dec | 2 birds | |
| 1944 | Pennington Flash | 18th-25th Mar | 3 birds, 2 on 18th March had increased to 3 on 25th | |
| 1947 | Salford/Prestwich boundary | 16th Feb | Found on a small lodge, present for about a week | |
| 1948 | near Manchester | 31st Jan | On a small flash | |
| 1978 | Kitcliffe Reservoir | 20th-23rd Nov | ||
| 1979 | Longdendale | 18th-19th Feb | The same bird was also considered to have visited Ogden Reservoir on 18th-19th Feb | |
| 1979 | Pennington Flash | 13th-15th Feb | The same bird was considered to have also visited Sale Water Park on the 23rd Feb | |
| 1980 | Pennington Flash | 27th Sep-12th Oct | ||
| 1982 | Audenshaw Reservoir | 3rd Nov | ||
| 1985 | Audenshaw Reservoir | 19th Nov | ||
| 1985 | Audenshaw Reservoir | 13th Dec | ||
| 1986 | Audenshaw Reservoir | 17th Apr | A bird in breeding plumage | |
| 1988 | Audenshaw Reservoir | 18th Mar | ||
| 1988 | Pennington Flash | 27th Oct | 2 birds | |
| 1989 | Pennington Flash | 22nd Sep | An adult | |
| 1990 | Hollingworth Lake | 23rd Oct | ||
| 1991 | Pennington Flash | 5th-21st Dec | A first-winter bird | |
| 1992 | Audenshaw Reservoir | 27th Oct | ||
| 1993 | Elton Reservoir | 18-20th Dec | 1st winter bird | |
| 1994 | Pennington Flash | 24-26th Oct | 1st winter bird | |
| 1994 | Pennington Flash | 5th Nov-29th Mar 1995 | 1st winter | |
| 1995 | Pennington Flash | 5th Nov | ||
| 1996 | Audenshaw Reservoir | 30th Jan | 2 adults | |
| 1996 | Hope Carr NR | 29th Nov | ||
| 1996 | Pennington Flash | 31st Jan | ||
| 1996 | Pennington Flash | 29th Feb-25th Apr | Moved to Dover Basin 1st-4th Mar, then returned to Pennington Flash and stayed until 25th April by which time it was attaining breeding plumage | |
| 1996 | Pennington Flash | 22nd-30th Dec | ||
| 1996 | Scotmans Flash | 24th Jan | ||
| 1997 | Audenshaw Reservoir | 1st Nov | Same individual then visited Heaton Park Reservoir on the 2nd Nov | |
| 1997 | Doffcocker Lodge | 31st Dec-10th Jan 1998 | ||
| 1997 | Hollingworth Lake | 21st Oct-2nd Nov | 1st winter | |
| 1998 | Shell Carrington NR | 13th Nov | ||
| 1999 | Heaton Park Reservoir | 3rd-6th May | Adult in breeding plumage | |
| 2001 | Audenshaw Reservoir | 17-19th Nov | ||
| 2003 | Pennington Flash | 10-17th Nov | ||
| 2005 | Audenshaw Reservoir | 3rd-19th Apr | A non-breeding plumaged adult it progressed into breeding plumage | |
| 2007 | Audenshaw Reservoirs | 6th-9th Oct | Moved to Heaton Park Reservoir from the 10th-28th Oct | |