Labels:airplane | animal | bird | book | bulletin board | earth | fence | hakham | plant | plaything | shelf | sky | vegetarianism OCR: FIELD MARKS Birds the wing bars, eye -rings, tail spots and Do vou know the Peterson Identification System? rump patches of bird are the field marks that distinguish it from every other bird Most of us cannot imagine trying to identify bird without clear idea of that bird indiv vidual field marks. The Peterson Identification System precisely defines those marks. Using scheme of arrows pointing to the ker field marks Topography of A Bird of each bird, the Peterson System removes much of the mystery and confusion of bird identification, especially among similar and confusing species KNOW YOUR FIELD MARKS Good birders know the key parts of bird's See if you know which marks the arrows point to then elick on the button to see the correet names of all the marks conf iusion anatomy correct
