Conservation Evidence strives to be as useful to conservationists as possible. Please take our survey to help the team improve our resource.

Providing evidence to improve practice

Action: Use greentree reservoir management Bird Conservation

Key messages

Read our guidance on Key messages before continuing

A site comparison study from the USA found significantly lower numbers of breeding mid- and under-storey birds at a greentree reservoir site than at a control site. Canopy nesting species were not affected. The species investigated were not gamebirds or wildfowl.


Supporting evidence from individual studies


In eastern Arkansas, USA, a site comparison study found significant differences in relative abundances of 12 of 28 non-gamebird species between a greentree site and an adjacent control area (Christman 1984). Singing birds were surveyed in the 1980-1981 breeding seasons. Greentree reservoir management reduced understory vegetation and bird species that are primarily understory foragers were absent or at lower frequencies, and nesting opportunities for ground- or understorey- nesting species were reduced, compared to the control. Canopy-foraging species were not affected. There were overall fewer breeding species and bird abundance was lower at the greentree reservoir site.


Referenced papers

Please cite as:

Williams, D.R., Child, M.F., Dicks, L.V., Ockendon, N., Pople, R.G., Showler, D.A., Walsh, J.C., zu Ermgassen, E.K.H.J. & Sutherland, W.J. (2019) Bird Conservation. Pages 141-290 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2019. Open Book Publishers, Cambridge, UK.