Here are the possible solutions for tern's nesting site perhaps clue
Answer
Clue
Relevancy
islet
Clue
Tern's nesting site, perhaps
Sea gull nesting site, maybe
Definition
a small island
tipoftheiceberg
Clue
Arctic tern's nesting area?
eave
Clue
Nesting site, perhaps
Nesting site
Nesting place, perhaps
Definition
to give cover under the eaves of a building
mistletoe
Clue
Spotted-owl nesting site
Definition
a Eurasian evergreen shrub, with leathery leaves, yellowish flowers, and waxy white berries, grows as a partial parasite on various trees, also MISLETOE