RULE: Pine Warbler (Immature)

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

IF
What colour were the WING STRIPES or PATCHES = {White or pale gray stripes or patches} OR {Unknown} AND
Did the WINGS have STRIPES or PATCHES = {Yes} OR {Unknown} AND
What Color were the UNDERTAIL COVERTS = {White or pale (grayish-white)} OR {Unknown} AND
Was the RUMP or LOWER BACK light = {No} OR {Unknown} AND
What colour PATTERN if any was on the BACK = {Uniform} OR {Unknown} AND
What colour was the THROAT = {White, or pale (grayish-white)} OR {Yellow} 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 was the TOP of HEAD = {Olive (yellowish-green)} OR {Green} OR {Brown, or chestnut (reddish-brown)} OR {Gray, or blue-gray} OR {Unknown} AND
What was the predominant colour of the HEAD = {Olive (yellowish-green)} OR {Green} OR {Brown, or chestnut (reddish-brown)} 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 {Songbird} AND
WHEN was the bird seen = {Summer} OR {Fall} AND
<WHERE was the bird seen> = {Northeastern Canada or United States} OR {Southeastern United States}
THEN
Pine Warbler (Confidence: 3)