Final answer:
Altricial birds are helpless at birth and require intensive parental care, unlike precocial birds which can take care of themselves soon after hatching.
Step-by-step explanation:
Altricial birds are different from precocial birds because altricial birds are helpless at birth, they usually hatch blind and without feathers requiring a lot of care from their parents. In contrast, precocial birds, such as domestic chickens, ducks, and geese, are able to take care of themselves shortly after hatching because they are born more developed. Altricial birds, such as robins and hummingbirds, undergo a longer period of development under parental care before reaching maturity, reflecting diverse reproductive strategies among bird species.