CONTENTS. 
Introduction een 
Cardinal 
Vegetable food 
Animal food 
INOS UAVS Sates 9 2 eal inosine Spi ah niab SEA tad Fela NL a hee 
IS UIA Ty gs DE hE 
List of seeds, fruits, and invertebrates eaten________________________ 
Nege table (00d) 2.628 2 22 ees CO eee oe eae ea Oe aa eee ae 
AMT A LOOd se 2 ce Pee Se a eee Sy a te Sead 
RSL GU 051) coe eee ace eRe BARS Oe Rea NS OU AY eS ROOM TNE Crea Ar ER Stor ae 
List of seeds and invertebrates eaten ___.____________--_._--- _ ee 
Rose-breasted grosbeak_______-__-__________ eee 
Appearance, distribution, and habits______.___________-___________._ 
Economic relations _________..-__._-____---_-_-_-___-_-_--__-__-_ 
MESECH DIE BOOM a5 sie ae te peed Dae eh ale heh Es co 8 
ASTM TOY SREY SHE Cl esp np a alpina 
PRLS SCG en eta Sas bonded ae 
BONA soe he ee en Soc aes Gone ieit aos mance 
List of seeds, fruits, other vegetable substances, and invertebrates 
Blaclkzheaded:SLOSbOile: ccnp keto od ree ee eee eee ety 
Appearance, distribution, and habits______-__.-____----_-__--_-_-__ 
HEVCONMOUNTE LO POTATO as acento mec pte mitral mm pn ain 
Weretable: 100d) 2. seco kek tte econ sseee ee steceseauecs 
INTIME OO Gar 4s Bote i ee eee ee 
NCS ERTS i BS ela waa a a a eh ee 
Oe a esha A a cate mgt rg ear allen ar oda die! 
List of seeds, fruits, and invertebrates eaten_.____-_____-__-___---__ 
BlUEe 2roshbeale was scaseSss25c6s-4 se ae Sons ene sse ke eso Skee ee ees 
Appearance, distribution, and habits__--__--__-____--------------__ 
WéonOimie L6latiOns Loss 2k eee eee oe oe tS 
Veretableytoodt asa seein sss ese ee es, 
Animal food _____--.--------- pet lc Lael a rant ae t t Na Sh ey 
SUMMARY 2s oo sase coe eee eo Seseseeoseseeessekec stesso 
List of seeds, fruits, and invertebrates eaten____-____----_-_-__--____ 
Relations of grosbeaks and other birds to parasitic insects__._____.-__-__ 
General COnCIUBSION: 2= cen eeee esse sectt es Sete ccceed ec ete ese seee secs 
