all known swallows find yourself a place to live wherever there is food and an open space.They inhabit the meadows, fields, grasslands, river valleys.Often you can see these birds in the city, in close proximity to human habitation.Where settle these birds, their nests are easy to spot in a bowl.Often it happens that swallows the chicks fall out of the nest.This happens much more often than other birds.
Most of the time adults spend in the air, provide food for themselves and their offspring.Hunting takes place in the air as prey are small insects.In view of this adult swallows strong, well-developed wings.Open mouth aimed at the flies and other insects.When a sufficient amount of them, the bird returns to the nest and feeds the contents of the beak to its offspring.On average, in the masonry from 4 to 6 eggs.If they survive and grow up healthy chicks swallows, we can assume that they were lucky.After 18 days after laying hatched offspring.If the conditions are favorable for life, food and water in abundance, over the summer, these birds can nest two or even three times.Chick swallows, which is represented by the above photo, is born blind, with a large yellow mouth, which constantly demands to put a portion of food.Parents are carefully looked after, struggling to heat and feed the kids unwise.The female in the first week of its heat warms the young, taking off for a short time for the food.At this time, it replaces the male.
But not always swallow chicks survive.It may happen that, for some reasons calf is on the ground.In this case, it is not necessary to take it in hand and try to return to the nest.According to experts, zoologists, chicks swallows dropped out of his house - is weak or sick individuals, perhaps thrown by parents.In doing so, the adult birds are given the chance to grow and get stronger remaining individuals.When asked how many nestlings swallows live to maturity from one masonry, is difficult to answer.
a mistake to think that kids drop out because that can not fly.A few weeks parents live with the grown offspring, accompanying them during the flight, and the young even in this period of habit continue to beg for food.However, they soon adapt to adult life and begin to stray into new pack.The length of the grown up birds - from 18 to 20 cm, a wingspan of 33 cm, weight very tiny - no more than 20 grams.The life of these graceful birds is short - no more than 4 years, but there were centenarians whose age is 16 years old!
Welfare swallows depends not only on the amount of food, but also on weather conditions.Since these birds drink too fly, the hot dry summer is their mass death.Bad weather also life threatening.In bad weather the birds hiding in their nests, dooming on starvation deaths of their young.There have been cases where people have helped accident and transported swallows in warmer areas.According to research biologists, now the number of this kind of sharply reduced due to adverse natural conditions, urbanization, climate disasters.In addition, in some countries, such as Italy, authorized hunting swallows.
