When you arrive at GZ, you'll find 2 signs, both with the title on them. Find the one relating to birds, and find the necessary info from it.
N 37° 3A.BCD W 122° 1E.FGH
A - Marsh Wren size
B - Forester's Tern size (digit 2)
C - 2nd bird, name, 5th letter
D - 3rd bird, name, 2nd letter (digit 2)
E - 2nd bird size
F - Snowy Egret size (digit 1)
G - 5th bird, name, last letter
H - 3rd bird, name, 1st letter (digit 2)
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