1. Aerial survey of harbour (Phoca vitulina) and grey seals (Halichoerus grypus) in Scotland in 2016 : Orkney and the north coast, the Moray Firth and part of east Scotland /: Orkney and the north coast, the Moray Firth and part of east Scotland. (2019) Authors: Duck, Callan; Morris, C (Chris) Other Names: Scottish Natural Heritage (Agency) Record Type: Book Extent: 1 online resource (iii, 29 pages), illustrations (colour), maps (colour)) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Aerial survey of harbour (Phoca vitulina) and grey seals (Halichoerus grypus) in Scotland in August 2017 : the Western Isles, part of west Scotland and part of east Scotland /: the Western Isles, part of west Scotland and part of east Scotland. (2019) Authors: Duck, Callan; Morris, C (Chris) Other Names: Scottish Natural Heritage (Agency) Record Type: Book Extent: 1 online resource (iii, 29 pages), illustrations (colour), maps (colour)) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Harbour seal (Phoca vitulina) abundance within the Firth of Tay and Eden Estuary, Scotland: recent trends and extrapolation to extinction. Issue 1 (8th December 2015) Authors: Hanson, Nora; Thompson, Dave; Duck, Callan; Baxter, John; Lonergan, Mike Journal: Aquatic conservation Issue: Volume 27:Issue 1(2017) Page Start: 268 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Rescaling of aerial survey data with information from small numbers of telemetry tags to estimate the size of a declining harbour seal population. Issue 1 (3rd September 2012) Authors: Lonergan, Mike; Duck, Callan; Moss, Simon; Morris, Chris; Thompson, Dave Journal: Aquatic conservation Issue: Volume 23:Issue 1(2013) Page Start: 135 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. Surveys of harbour (common) and grey seals in Orkney, the north coast of Scotland, the Moray Firth and the Firth of Tay in August 2012. (2013) Authors: Duck, Callan; Morris, C (Chris) Other Names: Scottish Natural Heritage (Agency), issuing body. Record Type: Book Extent: 1 online resource, illustrations (colour), maps (colour) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. Surveys of harbour (common) and grey seals on the east, north and north-west coast of Scotland and in Orkney, including the Moray Firth and the Firth of Tay, in August 2013. (2014) Authors: Duck, Callan; Morris, C (Chris) Other Names: Scottish Natural Heritage (Agency), issuing body. Record Type: Book Extent: 1 online resource, illustrations (colour), maps (colour) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. Surveys of harbour and grey seals on the south-east (border to Aberlady Bay) and south-west (Sound of Jura to Solway Firth) coasts of Scotland, in Shetland, in the Moray Firth and in the Firth of Tay in August 2015. (2016) Authors: Duck, Callan; Morris, C (Chris) Other Names: Natural Environment Research Council (Great Britain)., Sea Mammal Research Unit.; Scottish Natural Heritage (Agency), issuing body. Record Type: Book Extent: 1 online resource (iv, 36 pages), illustrations (colour), maps (colour) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. Surveys of harbour and grey seals on the west coast of Scotland (Ullapool to Scarba), in the Moray Firth and in the Firth of Tay, in August 2014. (2015) Authors: Duck, Callan; Morris, C (Chris) Other Names: Scottish Natural Heritage (Agency), issuing body. Record Type: Book Extent: 1 online resource, illustrations (colour), maps (colour) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
9. Uncovering the links between foraging and breeding regions in a highly mobile mammal. Issue 2 (21st January 2013) Authors: Russell, Deborah J. F.; McConnell, Bernie; Thompson, David; Duck, Callan; Morris, Chris; Harwood, John; Matthiopoulos, Jason; Punt, Andre Journal: Journal of applied ecology Issue: Volume 50:Issue 2(2013:Apr.) Page Start: 499 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗