RULE: Common Nighthawk

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

IF
Where was the white seen in flight = {On the wings and underbody} OR {Mainly on the wings} OR {Unknown} AND
<Did the bird show conspicuous or promient white in flight> = {Yes} OR {Unknown} AND
<How was the bird SEEN BEST> = {In flight} AND
What SHAPE were the wings = {Pointed} OR {Unknown} AND
What SIZE was the TAIL = {Medium} OR {Long} OR {Unknown} AND
What SHAPE was the TAIL = {Square or slightly notched at the end} OR {Forked} OR {Unknown} AND
<What SHAPE was the BILL> = {Straight and thick} OR {Hooked} OR {Downcurved} OR {Unknown} AND
<What LENGTH was the BILL> = {Very short} OR {Short} OR {Unknown} AND
<How BIG was the bird> = {Robin-sized} OR {Pigeon-sized} AND
<What TYPE of bird was seen> = {Swallow-like} OR {Hawk-like}
THEN
Common Nighthawk (Confidence: 7)