You should send your CV, a covering letter explaining why you are interested in this project, and the names and e-mail addresses of two academic referees. At least one of them should have supervised you on a previous research project. Project funding will go to the highest ranked students, and approximately one third of projects will be funded. Therefore, most successful applicants will have (or will receive a Masters level qualification, and at least a 2:1 or equivalent in their undergraduate degree. Many exceed this, and additionally have some research experience. I am very happy to provide informal advice.
Orros, M.E. & Fellowes, M.D.E. 2015 Widespread supplementary feeding in domestic gardens explains the return of the reintroduced red kite Milvus milvus to an urban area. Ibis 157, 230-238.
Orros, M.E. & Fellowes, M.D.E. 2014 Characterising supplementary feeding of the reintroduced red kite (Milvus milvus) in the UK. Bird Study 61, 260-263.