Assertion: tern's egg | /r/HasProperty | preyed by black-headed gull
Facets:
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.
text: Even though Royal 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.