Journal of experimental zoology . to J 1-, hybrids trom d pintail and 9 mallard, iigure S represents typeFi males, Xo. 966; figure 7 is extreme variation in the direction of mallard S53; figure 9 is extreme variation towards pintail duck Xo. 849. I F2 generation d. showing moi=t extreme mallard variation Xo. 530. Fa generation d, showing most marked pintail variation, Xo. 525. The i-ence in the color of the heads between figures 10 and 11 does not show in the agraph. 115 HY fBRlDIZATIOX AMON-G DUCKS AXD PHEASANTS JOHN C. Pintail X mallard experinu-nt. ,,<•,,„. I to 7 Same specime
Journal of experimental zoology . to J 1-, hybrids trom d pintail and 9 mallard, iigure S represents typeFi males, Xo. 966; figure 7 is extreme variation in the direction of mallard S53; figure 9 is extreme variation towards pintail duck Xo. 849. I F2 generation d. showing moi=t extreme mallard variation Xo. 530. Fa generation d, showing most marked pintail variation, Xo. 525. The i-ence in the color of the heads between figures 10 and 11 does not show in the agraph. 115 HY fBRlDIZATIOX AMON-G DUCKS AXD PHEASANTS JOHN C. Pintail X mallard experinu-nt. ,,<•,,„. I to 7 Same specimens as in plate 1, but mallards lett Pintail duck c^. 2 Pintail duck 9 . 3 to 5 Fi c?d^ showing full extent of varuition m 1-1. 118 PLATE 2
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1904
