RULE: Black-and-white Warbler

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

IF
How BIG was the bird = {Smaller than a sparrow} OR {Sparrow-sized} AND
List any unique FEEDING or other BEHAVIOUR observed = {Climbing down tree trunks} OR {Climbing up tree trunks} AND
<What TYPE of bird was seen> = {ID by Unique Behaviour or Jizz} AND
WHERE was the bird seen = {Northeastern Canada or United States}
THEN
Black-and-white Warbler (Confidence: 8)