Indexing winter gull numbers in Great Britain using data from the 1953 to 2004 Winter Gull Roost Surveys
Author(s): Banks, A.N., Burton, N.H.K., Calladine, J.R. & Austin, G.E.
Published: January 2009
Journal: Bird Study Volume: 56
Digital Identifier No. (DOI): 10.1080/00063650802681623
Introducing Ripple NI: BTO's community-based engagement project
Sorrel Lyall's story with BTO - from young birder, ringer and Youth Advisory Panel member to BTO Project Officer - has recently taken her to Northern Ireland, to deliver our ambitious new Ripple Project. Read her...
The Seabird Monitoring Programme (SMP) works to support the protection and conservation of our internationally important seabird populations.