Head of Ringing & Nest Recording Team
Dave is responsible for managing the Nest Record Scheme, the Barn Owl Monitoring Programme, and the Constant Effort Scheme and Retrapping Adults for Survival ringing projects.
Interests & Responsibilities
- Responsible for overseeing the four BTO volunteer demographic monitoring schemes: Nest Record Scheme (NRS), Barn Owl Monitoring Programme (BOMP), Constant Effort Site (CES) ringing scheme and the Retrapping Adults for Survival (RAS) ringing scheme.
- NRS and BOMP focus on the collection of productivity data at the level of the individual breeding attempt, while RAS collects survival data on species poorly covered by more general ringing. CES collects information on survival and per-season productivity. All these schemes feed demographic data into the BTO’s Integrated Population Monitoring programme.
- Involved in development of novel monitoring schemes to collect avian productivity data, e.g. Nesting Neighbours.
- Responsible for managing the Nest Records Organiser and the CES/RAS Organiser.
- Involved in analysis of avian productivity data and author on over 30 refereed scientific papers, reports and reviews. Specific research interests include the effect of weather and climate change on breeding success and the role of nest predation in determining reproductive success.
- Nest recorder, with experience of monitoring large nest box populations and finding nests of open-nesting species, and licensed bid ringer, currently holding a C Permit
Active nest recorder, responsible for Nunnery RG submissions Active bird ringer (C permit) Council member of Norfolk and Norwich Naturalists’ Society Norfolk Mammal Recorder
QualificationsBSc Biological Sciences, Oxford University PhD Avian mating systems, Lancaster University
Recent BTO Publications2021. BirdTrends 2020: Trends in numbers, breeding success and survival for UK breeding birds. British Trust for Ornithology, Thetford, Norfolk 2021. Latitudinal variation in arrival and breeding phenology of the pied flycatcher Ficedula hypoleuca using large-scale citizen science data. Journal of Avian Biology View at journal website (DOI: 10.1111/jav.02646) 2020. BirdTrends 2019: Trends in numbers, breeding success and survival for UK breeding birds. British Trust for Ornithology, Thetford, Norfolk 2019. The environmental predictors of spatio-temporal variation in the breeding phenology of a passerine bird. Proceedings of the Royal Society B 286 View at journal website (DOI: 10.1098/rspb.2019.0952) 9pp 2019. Spatial and habitat variation in aphid, butterfly, moth and bird phenologies over the last half century . Global Change Biology View at journal website (DOI: 10.1111/gcb.14592) 2019. BirdTrends 2018: Trends in numbers, breeding success and survival for UK breeding birds. British Trust for Ornithology, Thetford, Norfolk
Leech, D.I., Hartley, I.R., Stewart, I.R.K., Griffith, S.G. & Burke, T. 2001. No effect of parental quality or extra-pair paternity on brood sex ratio in the blue tit Parus caeruleus. Behavioural Ecology 12: 674-680.
Content Related to Dave Leech
BirdTrends 2020: Trends in numbers, breeding success and survival for UK breeding birds
The BTO's BirdTrends report is a one-stop shop for information about the population status of the common breeding birds of the wider UK countryside.
Citizen science reveals patterns in Pied Flycatcher breeding
New research uses data from BirdTrack and the Nest Record Scheme to investigate how adaptable breeding Pied Flycatchers are to a changing climate.