Grebes

1977 Dunnet, G. M. | Bourne, W. R. P. (William Richmond Postle) | Coulson, John (John C.) | Harris, Michael Philip | Mesd, C. J. | Milne, H. | Parslow, John Leonard Frederick | Perrins, C. M. | Steele, R. C. |

1997 Fjeldsa, Jon | O'Donnel, Colin |

Grebes are specisalised waterbirds which inhabit marshlands and reed-fringed lakes. Their dependence on wetlands is total and as a result they are particularly vulnerable to changes in ecosystems and their deterioration. So adapted are they to the wetlands they inhabit that they are an ideal indicator of the health of wetlands and the changes taking place, changes often imperceptible to humans. Since c.