RULE: Common Tern

<Question>
Match
{Variable}
Direct Choice
{Variable}
Infered Choice

IF
How did the bird fly = {Hovering or stationary} OR {Swallow-like} OR {Erratic} AND
How BIG was the bird = {Robin-sized} OR {Pigeon-sized} AND
<What TYPE of bird was seen> = {ID by Unique Behaviour or Jizz} AND
What type of ENVIRONMENT was the bird seen in = {Open area: field, prairie, farmland, tundra} OR {Wooded freshwater habitat} OR {Freshwater marsh or wetland} OR {Freshwater river or lake shore} OR {Open body of freshwater} OR {Saltwater marsh or wetland} OR {Flat saltwater shore; beach} OR {Rocky saltwater shore; cliff} OR {Open ocean; beyond sight of land}
THEN
Common Tern (Confidence: 5)