Read e-book online A field guide to hawks, North America PDF

By William S Clark; Brian K Wheeler; National Audubon Society.; National Wildlife Federation

ISBN-10: 0395360013

ISBN-13: 9780395360019

ISBN-10: 0395441129

ISBN-13: 9780395441121

ISBN-10: 0395936152

ISBN-13: 9780395936153

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Extra info for A field guide to hawks, North America

Sample text

Lon g- Ieg,ged. sm a ll-h e ad e d, Neotropical raptor. The y h a ve douhl e -jointe d legs . [a] JUVENIlE. Similar to adult but with a brownish cas t to upperparts, pale rac e pallern , amb e r eyl'S , and bully barring on underpa rls and le g i'c a lh c rs (not shown ). Ib] ADULT. O ve ra ll sl ,lte g ra y, with red e ye s and [(mg . ol'(//lgis17 legs. Leg i'cathers and und e rtaiJ co\'erts show n<11TO\\ whitish harring. ~ 2 . \ tWIJ white bUilds. Ic] ADUtT. O ve rall slate gra y. with re d eyes and long.

Uppertail is brown with sevcral inJis­ tinct Jarker bands. \Vingtips arc pointed on gliding hawks . [h) RUFOUS·MORPH JUVENIlE. Il ea d and breast arc J ar k brown with a rufous cast , belly is dark brown , with a sharp line of contrast betwee n them. 1I1l1' at wrist, narrow dusky band on tr'tiling edge of w in gs, and tuIlT()W clarh tips on outer pri­ maries. "Vhitish llndcrtail shows dusky tip . [i] HEAD·ON SltHOUETTE. 233 Largt' long-wi nged buteo . T hey ha ve small beab anlilegs fea th­ ered to toes.

0] ADULT liGHT MORPH . 'Vhite underparts arc unm arked . Hrown tail has indistinct patte rn of widE' dark subterminal band and several other narrowc r dark bands. Note rlljims patel, ()Il ,ide of necl~ and w/,ite forehead and lores . [b] ADUlT DARK MORPH . Overall d a rk brown. 'Llil as in light-morph adult. but dark bands ca n be wid t·r. No te white jiJrehead

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A field guide to hawks, North America by William S Clark; Brian K Wheeler; National Audubon Society.; National Wildlife Federation


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