CorviDs ArE soCiABlE AnD tEnD to Form soCiAl groups. this is pArtiCulArly truE oF rooks, whiCh stAy in thEir FloCks All yEAr roun
D、thE rAvEn, lArgEst oF thE CorviDs, joins A soCiAl group As A juvEnilE, pAiring oFF At ArounD thE AgE oF thrEE AnD mAting For liFE.Courtship CAn involvE suCh gAmEs As pAir snow sliDing AnD thE synChronizED Flight tEst.CorviDs CAn BE FounD All ovEr thE worl
D、thE ADAptABility AnD intElligEnCE oF this FAmily hAvE mADE thEm ExtrEmEly suCCEssFul. For CEnturiEs, thE rAvEn AnD thE Crow hAvE hElD A spECiAl plACE in thE mythology oF vArious CulturEs.
2. it CAn BE inFErrED From thE pAssAgE thAt CorviDs ArE
A．A FAmily oF BirDs
B．gAmEs For ChilDrEn
C．mEmBErs oF A sports CluB
D、imAginAry BEings