112 datasets found

Recording the eider duck population in the Lower Saxony Wadden Sea in spring 2007. In the Lower Saxony Wadden Sea, the eider duck population has been recorded twice a year by...

Recording the eider population in the Lower Saxony Wadden Sea in the summer (Mauser) of 2007. Since 1986, the eider population in the Lower Saxony Wadden Sea has been recorded...

Recording the eider population in the Lower Saxony Wadden Sea in the summer (Mauser) of 2010. Since 1986, the eider population in the Lower Saxony Wadden Sea has been recorded...

Recording the eider population in the Lower Saxony Wadden Sea in the summer (Mauser) of 2015. Since 1986, the eider population in the Lower Saxony Wadden Sea has been recorded...

Recording the eider population in the Lower Saxony Wadden Sea in spring 2020. Since 1986, the eider population in the Lower Saxony Wadden Sea has been recorded by aircraft twice...

Recording the eider duck population in the Lower Saxony Wadden Sea in spring 2017. In the Lower Saxony Wadden Sea, the eider duck population has been recorded by aircraft twice...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in spring 2006. Since 1986, populations of eider ducks have been recorded twice a year from an...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in summer (Moulting) 2001. Since 1986, populations of eider ducks in the Wadden Sea of ​​Lower...

Survey of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in spring 2013. Since 1986, populations of eider ducks in the Wadden Sea of ​​Lower Saxony have been...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in summer (Moulting) 2017. In the Wadden Sea of ​​Lower Saxony, populations of eider ducks have...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in spring 2002. Since 1986, populations of eider ducks in the Wadden Sea of ​​Lower Saxony have...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in spring 2003. Since 1986, populations of eider ducks in the Wadden Sea of ​​Lower Saxony have...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in summer (moulting) 2014. In the Wadden Sea of ​​Lower Saxony, populations of eider ducks have...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in spring 2018. The population of eider ducks in the Wadden Sea of ​​Lower Saxony has been...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in spring 2008. Since 1986, populations of eider ducks have been recorded twice a year from an...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in summer (moulting) 2008. Since 1986, populations of eider ducks in the Wadden Sea of ​​Lower...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in summer (Moult) 2000. Since 1986, populations of eider ducks in the Wadden Sea of ​​Lower...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in winter 1992. Since 1986, populations of eider ducks have been recorded twice a year from an...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in spring 2014. Since 1986, populations of eider ducks have been recorded twice a year from an...

Registration of the population of eider ducks in the Wadden Sea of ​​Lower Saxony in summer (Moulting) 1999. Since 1986, populations of eider ducks in the Wadden Sea of ​​Lower...