Bittern conservation in the UK

Feature of Bitterns

• Male bitterns make special 1 in spring to mate.

History of Bitterns

10th-15th century

• Some people took bitterns as a kind of luxury 2.

16th century

• Bitterns were killed for house 3.

18th century

• Bitterns’ habitat was replaced by the areas for construction and 4.
  
  

Current research findings

• Global warming contributes a lot to the 5 to their habitat.

• Water mixed with salt affects their 6. 

• Bringing back a type of 7 as food source in the reeds is important.

• Nowadays, bitterns breed in small nature 8.

• Bitterns are facing various threats (e.g. pollution with dangerous 9).

Conclusion

• Conservation has saved many bitterns but 10 still exist.