What sort of results have scientists received from communication cable? An underwater microphone called a hydrophone is sending back sounds of popping, booming and crashing. This may be first real-time monitoring of an undersea eruption. Once cable was installed and tested, scientists linked up communication system to carry data first to Hawaiian Volcano Observatory and then to Oahu where it is available for researchers.

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Birds use fat as fuel for their journey. It is important that they have enough to eat before they leave so they are able to store enough fat for long distance they must travel. Some birds make many stops, filling up with enough food to make it to next stage of their journey.

Birds face many hazards during migration. Some may get blown off course or get caught in a storm. Some birds don't have enough food or fat stored to complete trip. Hunters claim thousands of ducks and geese each year during fall hunting season. Changes in forestry, agriculture and urban expansion are difficult for birds. These changes affect habitats of birds and other wildlife. Migrating birds depend on forests and wetlands and sometimes cannot adapt to changes.

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