Altricial species:
Altricial young hatch or are born in an underdeveloped condition. They may be blind, poorly insulated, weakly mobile, or unable to feed independently, so parents must provide warmth, food, defense, or transport. Precocial young are comparatively mature and mobile soon after birth. Altriciality concerns developmental state and dependence, not whether adults reproduce once or repeatedly. The r/K framework is best treated as a continuum. At one end, rapid development and many inexpensive offspring suit transient opportunities; at the other, slower development and greater investment per offspring
Ref: Ecology: Concepts and Applications, Molles, 9th Ed., Ch. 12