Oystercatcher Chicks (IMAGE) Netherlands Institute of Ecology (NIOO-KNAW) Caption Are they safe? Normally they are. But with more and more extreme weather and climatic events, that's not so sure. Only a few feet away the Wadden sea is lurking, and floods have become twice as frequent during the last 20 years. Credit Martijn van de Pol/NIOO-KNAW Usage Restrictions Only to be used in combination with the subject of this press release. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.