Assertion: tern | /r/HasProperty | defensive of their nest sites
Facets:
value: fiercely
type: DEGREE
Source sentences:
text: Even though Terns are fiercely defensive of their nest sites and chicks, the eggs are often destroyed by sand crabs; the eggs and chicks are preyed upon by the Black-headed Gull; while Laughing Gulls and Ruddy Turnstones only take the eggs.