The concept of Ecological Networks is popular in nature conservation policies. This paper reflects on advantages and disadvantages of using this concept in planning and realizing ecological ambitions. It focuses on how the concept is variously interpreted and used by different people. A case study on the Ecological Network and its users in the province of Gelderland in the Netherlands shows that concepts can be useful for promoting ideas and uniting people. However, the use of a concept can also lead to misleading consensus and hidden responsibilities, which can frustrate the implementation of the Ecological Networks.