Papers

Papers

BTO publishes peer-reviewed papers in a wide range of scientific journals, both independently and with our partners. If you are unable to access a scientific paper by a BTO author, please contact us.

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    A review of Curlew headstarting projects in Europe

    Author: Ewing, H. Bowgen, K.M., Burton, N.H.K., Saunders, R., Perkins, A., Gajko, A., O’Donoghue, B., Kala, B., Kerperin, C., Kelley, C., Heward, C.J., Krupiński, D., Nijs, G., Weber, H., Düttmann, H., Kruckenberg, H., Deiting, J., Thiess, L., Szajda, M., Maluśkiewicz, M., Boschert, M., Obłoza, P., Tüllinghoff, R., Kelly, S.B.A., Grigg, T. & Franks, S.E.

    Published: 2025

    Breeding waders are among the most threatened of European bird species and the focus of a suite of conservation interventions, such as the improvement of grassland nesting habitats, and the protection of nests and chicks from predators and destruction by agricultural activities. Headstarting is a relatively novel technique in breeding wader conservation, where eggs are removed from the wild and reared in carefully controlled environments. It aims to bypass the threats individuals encounter during vulnerable early life stages in the wild. Headstarting differs from more traditional forms of captive rearing, in that individuals only remain in captivity for a small part of their life cycle (generally egg and hatchling stages) and are released once at a less vulnerable stage to provide a quick, artificial boost to the breeding productivity of a wild population. 

    01.04.25

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    Macroecological rules predict how biomass scales with species richness in nature

    Author: Pigot, A.L., Dee, L., Richardson, A.J., Cooper, D., Eisenhauer, N., Gregory, R.D., Lewis, S., Macgregor, C.J., Massimino, D., Maynard, D., Phillips, H.R.P., Rillo, M., Loreau, M. & Haegeman, B.

    Published: 2025

    This study identifies a new fundamental rule governing how ecosystems are assembled, revealing how and why biomass increases with the number of species, whether this be the mass of fish on a coral reef, earthworms in the soil or birds in the sky.

    20.03.25

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    Post-fledging movements in an elusive raptor, the Eurasian Goshawk Accipiter gentilis: scale of dispersal, foraging range and habitat interactions in lowland England

    Author: Henderson, I., Barton, M., Field, A., Husbands, R., Jones, G., Armour-Chelu, N. & Conway, G.J

    Published: 2025

    GPS tracking of young Goshawks in lowland England reveals the movements and habitat use of this species, how these characteristics differ between the sexes, and how they change over the birds’ early lives.

    14.03.25

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    The proportion of common pheasants shot using lead shotgun ammunition in Britain has barely changed over five years of voluntary efforts to switch from lead to non-lead ammunition

    Author: Green, R.E., Taggart, M.A., Pain, D.J., Clark, N.A., Cromie, R., Dodd, S.G., Elliot, B., Green, R.M.W., Greenwood, L., Huntley, B., Leslie, R., Porter, R., Price, M., Roberts, J., Robinson, R.A., Smith, K.W., Smith, L., Spencer, J., David Stroud, D. & Thompson, T.

    Published: 2025

    A full voluntary transition from lead to non-lead shotgun ammunition by 2025 only resulted in a slight, non-significant downward trend in the proportion of Pheasants killed using lead shot over the five-year transition period.

    06.03.25

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