https://popups.lib.uliege.be/test/index.php?id=121 Publications de Auteurs Jean-Claude Ruwet fr 0 https://popups.lib.uliege.be/test/index.php?id=180 Thu, 21 Dec 2023 14:37:53 +0100 Thu, 21 Dec 2023 14:37:55 +0100 https://popups.lib.uliege.be/test/index.php?id=180 https://popups.lib.uliege.be/test/index.php?id=179 Thu, 21 Dec 2023 14:36:14 +0100 Thu, 21 Dec 2023 14:36:17 +0100 https://popups.lib.uliege.be/test/index.php?id=179 https://popups.lib.uliege.be/test/index.php?id=173 Great Crested Grebes are fastly expanding in Western Europe, especially in Belgium thanks to protection since 1956 and are showing a growing tolerance towards human beings and their activities. Some nests are now exposed in full view and the birds do not require any longer a thick vegetation to hide them. In some places however, some nests that had been hooked at a submerged twig had to suffer quick water level fluctuations owing to repeated flooding from a nearby sluice, which resulted in nests and eggs being lost. A floating nesting raft, which is described, has been successfully tested and appeared to be an attractive nest support able to face water level fluctuations. Thu, 21 Dec 2023 14:32:56 +0100 Thu, 21 Dec 2023 14:32:58 +0100 https://popups.lib.uliege.be/test/index.php?id=173 https://popups.lib.uliege.be/test/index.php?id=120 Thu, 21 Dec 2023 13:19:55 +0100 Thu, 21 Dec 2023 13:52:07 +0100 https://popups.lib.uliege.be/test/index.php?id=120