One-forth of birds of a flock are at the riverbank and one-fifth of remaining 22 birds are wandering in search of food.What is number of bird in the nest.
Answers
Step-by-step explanation:
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Nesting Cycle
More than 700 bird species breed in North America, and the variations in their behaviors are fascinating and complex. Different species find mates, build nests, lay eggs, and raise their young in incredibly different ways. This overview is a generalization of the avian nesting cycle. For more information about the nesting cycles of individual birds, visit our guide to common nesting birds.
FINDING A PLACE TO BREED
Throughout the year, most birds use day length to tell what season it is. When the number of hours of daylight exceeds a certain critical level, physiological changes are triggered in birds which prepare them to breed. Most birds, especially those in temperate regions, also time their breeding activities so that they will be feeding their nestlings when food is most abundant. However, well before nestlings arrive, birds need to select a breeding territory. Non-migratory species may either maintain a territory throughout the winter or establish a new one in the spring. Migratory birds begin looking for and defending a territory as soon as they arrive in the spring. Good territories provide potential nest sites, reliable food sources, and protection from predators.
Answer:
8
Step-by-step explanation:
According to question:
One-forth of birds of a flock are at the riverbank and one-fifth of remaining 22 birds are wandering in search of food
Let the total number of birds be x
ATQ
⇒ x/4+x/5+22= x
⇒9x/20+22=x
⇒9x/20-x=-22
⇒x-9x/20=22
⇒11x/20=22
⇒x=40
Therefore total number of birds= 40
Now, number of birds in the nest = 1/5×40= 8