Question

Migratory birds are multinational resources. Explain?

Answer 1

Hint: The daily seasonal movement, mostly north and south along a flyway, between breeding and wintering grounds, is bird migration. Many bird species migrate. Migration involves a high cost of predation and mortality, even from human hunting, and is mainly driven by food availability.

Complete answer:
Three kinds of natural resources are available, including national natural resources, global natural resources, and foreign natural resources. Minerals and land comprise national natural resources. Migratory birds are a multi-national resource. The migration of migratory birds is related to the availability of resources during the season. Rivers, reservoirs, wild animals are all examples of other multinational tools. International natural resources include light, air, and sunlight.
To shift from areas of low or declining resources to areas of high or rising resources, birds migrate. Food and nesting areas are the two primary resources being sought.
In the spring, birds breeding in the Northern Hemisphere prefer to migrate northward to take advantage of burgeoning populations of insects, budding plants, and an abundance of breeding places. The birds move south again as winter arrives and the supply of insects and other food decreases. A driving factor is to avoid the cold, but many animals, including hummingbirds, can survive freezing temperatures as long as sufficient food supplies are available.

Additional Information: In their annual journeys, migrating birds will cover thousands of miles, sometimes taking the same route year after year with little deviation. On their own, first-year birds also make their very first migration. Somehow, despite never having seen it before, they may find their winter home and return to where they were born the following spring.
The secrets of their incredible navigational abilities are not well known, partially because when they fly, birds combine many distinct kinds of senses. Compass knowledge can be gained by birds from the sun, the stars, and by detecting the magnetic field of the earth. They also collect details from the setting sun location and from landmarks seen during the day. There is also proof that, at least for homing pigeons, the sense of smell plays a part.
In their annual migrations, some species, particularly waterfowl and cranes, follow preferred pathways. These pathways are also associated with major stopover locations that provide vital food sources for the survival of the birds. Smaller birds tend to migrate across the landscape across large fronts. Recent research using eBird data shows that, in spring and fall, many small birds take different routes to take advantage of seasonal weather and food patterns.

Note: It is a risky and arduous undertaking to take a journey that can stretch to a round-trip distance of several thousand miles. It is an effort that tests both the physical and mental capacities of the birds. The trip's physical stress, lack of sufficient food supplies along the way, bad weather, and increased exposure to predators all contribute to the journey's hazards.