Question

Why is there is no death for insectivorous birds?

Answer 1

Hint: Several hypotheses have been proposed for explaining the disappearance of insectivorous bird species from forested habitats around the world

Complete answer: When large habitats are broken up into small fragments due to various human activities, mammals and birds requiring large territories and certain animals with migratory habits are badly affected, leading to population declines. Strangely enough, human cleanliness destroys the habitats of scavengers, such as vultures, kites, and crows.
The scavengers relish livestock carcasses, which are now buried or burnt in certain countries instead of leaving them as open as before. The California condor or vulture, the largest bird of today is suffering due to human cleanliness. Insectivorous birds are particularly sensitive to habitat destruction and fragmentation. There is less number of death due to the migration characteristics of the bird.

Additional Information: 1. Destruction of habitats and fragmentation: Habitats are destroyed by various human activities developmental work, deforestation, pollution cleanliness, etc.
2. Developmental work: Human settlements, harbors, dams, reservoirs, roads, railway lines, croplands, pastures, plantations, industries, mines, etc. have reduced the natural habitats of wildlife.
3. Deforestation: Deforestation deprives wildlife cover and food. This leads to a decrease in the population of species
4. Alien species invasions: When alien species are introduced unintentionally or deliberately for whatever purpose, some of them turn invasive and cause the decline or extinction of indigenous species.

Note: Biodiversity is the vast array of species of micro-organisms, algae, fungi, plants, and animals occurring on the earth either terrestrial or aquatic habitats or the ecological complexes of which they are apart.