Thanks for that info, guys.
The female-male ratio simply must have something to do with ‘females fight for access to males’ and ‘for how long does a male normally parent a clutch?’
The ratio of males to females at breeding-pair-formation time is pivotally dependant on whether dad gives the chicks the kick at less-than-one-year or more-than-one-year.
S.E.
The female-male ratio simply must have something to do with ‘females fight for access to males’ and ‘for how long does a male normally parent a clutch?’
The ratio of males to females at breeding-pair-formation time is pivotally dependant on whether dad gives the chicks the kick at less-than-one-year or more-than-one-year.
S.E.