Armeria burrows Fratercula arctica Great Britain hillside hummock landscape natural nature Pembrokeshire puffin Skomer Island thrift united kingdom wales welsh auk beak bird campion flowers plants Silene wings animal animals coneys eco forest hamster-like Himalayas India jungle krayker Ladakh mammal Ochotona himalayana piika Pika pikat prey rock rabbits rodent squeak wild wild animal Jammu Australian breeding control damage damaging danger destructive devastating digging ecosystem environmental erosion fauna feral invasive mammalian pest pest pest control populated prolific rabbits reproductive spread threat uncontrollable widespread wildlife bay beach coast environment habitat organism sand shore Soil