Wiktionary
uniparental
a. From but one parent.
Usage examples of "uniparental".
Thus, the distinctive features of shorebird biology- especially their precocial young, clutches of few but large eggs, ground-nesting habits, and severe losses from preda-tion-predispose them to male uniparental care and female emancipation or desertion.
It thereby differs from that of most species whose young are externally fertilized and given only uniparental care or even no care at all.
Biparental care is the rule in birds, and while in those bird species that practice uniparental care the mother is usually the sole caretaker, in some bird species it is the father, a development unprecedented among mammals.