REFERENCES

• Brownbill, A, and Dutton, A. 2019. UK Natural Capital: Urban Accounts. Office for National Statistics, London. www.ons.gov.uk/ economy/environmentalaccounts/bulletins/ uknaturalcapital/urbanaccounts

• Mayor of London. 2021. Parks and green spaces. www.london.gov.uk/what-we-do/environment/ parks-green-spaces-and-biodiversity/parks-andgreen-spaces

• Newson, S E, Woodburn, R J W, Noble, D G, Baillie, S R, and Gregory, R D. 2005. Evaluating the Breeding Bird Survey for producing national population size and density estimates. Bird Study 52: 42-54.

• Woodward, I, Arnold, R, and Smith, N. 2017. The London Bird Atlas. London Natural History Society and John Beaufoy Publishing, London and Oxford.