About me

Prior to joining WWT, I was an undergraduate at the University of Dundee where I attained my BSc in Zoology. Not long after finishing my degree, I started volunteering at WWT Martin Mere, helping with the day-to-day jobs in the grounds, as well as a little in the visitor centre. I then moved on to help more with the research side of things: collating entering and reporting on various swan projects. It was through this that I joined the team at WWT Slimbridge.

My work

When I first joined WWT’s Monitoring Unit it was as part of the Wetland Bird Survey Secretariat, assisting the national organiser with the running, reporting and data management for the scheme. Later, my role shifted and I became more heavily involved in the planning, fieldwork and reporting of aerial surveys of waterbirds in UK inshore and offshore waters, which WWT were advancing at the time.

Through the years, I’ve organised various national surveys, such as those for naturalised geese, cormorants and Ruddy Ducks. I’ve also carried out a range of habitat and species specific surveys, including aerial surveys of Barnacle Geese, Common Scoter breeding surveys and various goose and swan censuses.

Currently, a large part of my role is managing WWT’s Goose & Swan Monitoring Programme. For this, and all other similar waterbird surveys, I have to liaise with volunteer and professional counter networks as well as partner organisations, both national and international. My role also involves reporting and feedback to counters, so I have gained an array of experience in the production of newsletters and survey reports, as well as in the design and maintenance of websites.

I’m also currently involved in the development of WWT’s European Seaduck monitoring work, and I help with various status assessment and capacity building work, which others in the Monitoring team are leading on.


  • Management, implementation and design of waterbird monitoring activities.
  • Data analysis and reporting for large-scale waterbird censuses.
  • Coordination of large-scale volunteer networks.
  • Data management and processing of large datasets.
  • Reporting for monitoring networks: including production of reports, newsletters and website feedback.


Hayhow DB, Ausden MA, Bradbury RB, Burnell D, Copeland AI, Crick HQP, Eaton MA, Frost T, Grice PV, Hall C, Harris SJ, Morecroft MD, Noble DG, Pearce-Higgins JW, Watts O, Williams JM, The state of the UK’s birds 2017. The RSPB, BTO, WWT, DAERA, JNCC, NE and NRW, Sandy, Bedfordshire

Hall, C. 2016. A review of the progress against the action plan for eradication of the Ruddy Duck (Oxyura jamaicensis) in the Western Palearctic (2011-2015). WWT report to the Bern Convention.

Hall, C., O. Crowe, G. McElwaine, Ó. Einarsson, N. Calbrade & E. Rees. 2016. Population size and breeding success of the Icelandic Whooper Swan Cygnus cygnus: results of the 2015 international census. Wildfowl 66: 75-97.

Smith, L.E., C. Hall, P.A. Cranswick, A.N. Banks, W.G. Sanderson & S. Whitehead. 2007. The status of Common Scoter Melanitta nigra in Welsh waters and Liverpool Bay, 2001–2006. Welsh Birds 5: 4–28.