CONTENTS. 
CHAPTER 
J.—A BIRD’S FOREFATHERS . ; j : ; ‘ 
II.—How DID THE BIRDS FIRST FLY, PERHAPS? . ‘ 
Il.—A BIRD’S FORE LEG . ¢ ‘ : ; 2 ; 
IV.—WHY DID THE BIRDS PUT ON SOFT RAIMENT?. ; 
V.—THE CUT OF A BIRD'S FROCK . ‘ E : : 
VI.—ABOUT A BIRD'S UNDERWEAR . ; : : : 
VII.—A BIRD’S OUTER WRAP. : : , ‘ 
VIII.—A BIRD’S NEW SUIT . . ‘ é : : : 
1X.—“ PUTTING ON PAINT AND FRILLS” AMONG THE BIRDS 
X.—COLOR CALLS AMONG THE BIRDS : : : : 
XI.—WaAR AND WEAPONS AMONG THE BIRDS . 
XII.—ANTICS AND ODOR AMONG THE BIRDS : 
XIII.—THE MEANING OF MUSIC AMONG BIRDS . : : 
XIV.—FREAKS OF BACHELORS AND BENEDICTS IN FEATHERS 
XV.—STEP-PARENTS AMONG BIRDS . ; 
XVI.—WHY DID BIRDS BEGIN TO INCUBATE? 
XVII.— WuyY DO THE BIRDS BUILD so? : . ; ‘ 
XVIII.—FASTIDIOUS NESTING HABITS OF A FEW BIRDS. 
XIX.—WHAT MEAN THE MARKINGS AND SHAPES OF BIRDS’ 
EGGS? : ‘ ‘ , é ‘ : : 
XX.—WHY TWO KINDS OF NESTLINGS? . 9. 
XXI.—How soME BABY BIRDS ARE FED. : . 
XXII.—How SOME GROWN-UP BIRDS GET A LIVING . : 
XXIII.—TooLs AND TASKS AMONG THE BIRDS : ; ‘ 
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