Complex sentence: The roughly reed bed where the birds roost is directly underneath the approach path to Runway 06; when the airport was announced, there were fears that the reed bed would be destroyed due to the perceived threat of bird strikes, creating concern amongst environmentalists.
Split into simpler sentences: The roughly reed bed where the birds roost is directly underneath the approach path to runway 06. When the construction of the airport was announced, there were fears that the reed bed would have to be destroyed due to the perceived threat of bird strikes, creating concern amongst environmentalists.