RULE: Orange-crowned Warbler

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

IF
Did the WINGS have STRIPES or PATCHES = {No} OR {Unknown} AND
What Color were the UNDERTAIL COVERTS = {Yellow, olive, or tan (light brown)} OR {Unknown} AND
Was the RUMP or LOWER BACK light = {No} OR {Unknown} AND
What colour was the BREAST = {Yellow} OR {Olive (yellowish-green)} OR {Green} OR {Gray, or blue-gray} OR {Unknown} AND
What colour was the THROAT = {Yellow} OR {Olive (yellowish-green)} OR {Green} OR {Gray, or blue-gray} OR {Unknown} AND
What SHAPE was the BILL = {Straight and slender} OR {Unknown} AND
What LENGTH was the BILL = {Short} OR {Medium} OR {Unknown} AND
What colour were the CHEEKS = {Olive (yellowish-green)} OR {Green} OR {Gray, or blue-gray} OR {Unknown} AND
What were the EYE markings if any = {Light STRIPE OVER, BEHIND or THROUGH the eye} OR {Dark STRIPE THROUGH the eye} OR {None} OR {Unknown} AND
Was the CROWN or the TOP of HEAD striped = {No} OR {Unknown} AND
What colour was the TOP of HEAD = {Orange, buff (orange-yellow), or tan} OR {Red, or pink} OR {Rufous (dull-red or rust-colored)} OR {Olive (yellowish-green)} OR {Green} OR {Gray, or blue-gray} OR {Unknown} AND
What was the predominant colour of the HEAD = {Olive (yellowish-green)} OR {Green} OR {Gray, or blue-gray} OR {Unknown} AND
How BIG was the bird = {Smaller than a sparrow} OR {Sparrow-sized} AND
<What TYPE of bird was seen> = {Warbler-like} OR {Sparrow-like} OR {Songbird} AND
WHEN was the bird seen = {Spring} OR {Summer} OR {Fall} AND
<WHERE was the bird seen> = {Northeastern Canada or United States} OR {Southeastern United States}
THEN
Orange-crowned Warbler (Confidence: 1)