Answer:
Step-by-step explanation:
The text and video provide several pieces of evidence supporting the conclusion that environmental factors along the path of migrating birds can impact their health.
Firstly, the text explains that birds rely on specific habitats along their migratory routes for breeding, resting, and feeding. The destruction or alteration of these habitats due to factors such as climate change, pollution, and land development can have negative impacts on bird populations. For example, loss of wetlands has been linked to declines in shorebird populations, and destruction of forests has contributed to the decline of migratory songbirds.
Additionally, the video discusses how weather conditions, such as storms and temperature changes, can affect the timing and success of bird migrations. For example, unseasonably warm weather can cause birds to arrive at their breeding grounds too early, before food sources are available, and severe storms can result in high mortality rates for migrating birds.
Furthermore, the video highlights the role of human activities, such as hunting and the use of pesticides, in impacting bird populations. For example, hunting can lead to declines in bird populations, particularly in areas where birds are hunted during their migratory journeys. Pesticides can also have negative impacts on birds, including decreased egg production and weakened immune systems.
Overall, the evidence presented in both the text and video supports the conclusion that environmental factors along the path of migrating birds can play a significant role in the health and survival of those bird populations.