[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:06.37,0:00:09.56,Default,,0000,0000,0000,,Each spring, nature lovers eagerly greet the signs
Dialogue: 0,0:00:09.56,0:00:12.15,Default,,0000,0000,0000,,that winter is finally coming to an end.
Dialogue: 0,0:00:12.15,0:00:13.25,Default,,0000,0000,0000,,As the days grow warmer,
Dialogue: 0,0:00:13.25,0:00:15.33,Default,,0000,0000,0000,,the flowers and trees start to bloom,
Dialogue: 0,0:00:15.33,0:00:16.54,Default,,0000,0000,0000,,and the world comes alive
Dialogue: 0,0:00:16.54,0:00:18.18,Default,,0000,0000,0000,,with the melodious call of birds
Dialogue: 0,0:00:18.18,0:00:20.10,Default,,0000,0000,0000,,in search of a new mate.
Dialogue: 0,0:00:20.10,0:00:21.78,Default,,0000,0000,0000,,But where have these enchanting sounds
Dialogue: 0,0:00:21.78,0:00:23.83,Default,,0000,0000,0000,,been hiding all winter?
Dialogue: 0,0:00:23.83,0:00:26.34,Default,,0000,0000,0000,,For almost 200 species of song birds,
Dialogue: 0,0:00:26.34,0:00:27.52,Default,,0000,0000,0000,,their winters have been spent
Dialogue: 0,0:00:27.52,0:00:28.98,Default,,0000,0000,0000,,down in the tropical climates
Dialogue: 0,0:00:28.98,0:00:31.52,Default,,0000,0000,0000,,of Central and South America.
Dialogue: 0,0:00:31.52,0:00:32.96,Default,,0000,0000,0000,,While this may sound ideal,
Dialogue: 0,0:00:32.96,0:00:35.14,Default,,0000,0000,0000,,it involves one of the most perilous journeys
Dialogue: 0,0:00:35.14,0:00:38.12,Default,,0000,0000,0000,,known in the entire animal kingdom.
Dialogue: 0,0:00:38.12,0:00:40.23,Default,,0000,0000,0000,,This journey is called migration,
Dialogue: 0,0:00:40.23,0:00:41.26,Default,,0000,0000,0000,,and for song birds,
Dialogue: 0,0:00:41.26,0:00:43.12,Default,,0000,0000,0000,,this can involve travelling somewhere
Dialogue: 0,0:00:43.12,0:00:45.57,Default,,0000,0000,0000,,between a few hundred to almost 7,000 miles
Dialogue: 0,0:00:45.57,0:00:47.18,Default,,0000,0000,0000,,in a period of several weeks
Dialogue: 0,0:00:47.18,0:00:48.76,Default,,0000,0000,0000,,to four months.
Dialogue: 0,0:00:48.76,0:00:50.04,Default,,0000,0000,0000,,Birds spend weeks preparing
Dialogue: 0,0:00:50.04,0:00:51.37,Default,,0000,0000,0000,,for the intense journey
Dialogue: 0,0:00:51.37,0:00:53.35,Default,,0000,0000,0000,,by gorging on large quantities of food,
Dialogue: 0,0:00:53.35,0:00:54.87,Default,,0000,0000,0000,,sometimes doubling their weight
Dialogue: 0,0:00:54.87,0:00:56.67,Default,,0000,0000,0000,,prior to departure.
Dialogue: 0,0:00:56.67,0:00:58.17,Default,,0000,0000,0000,,While flying, birds can lose
Dialogue: 0,0:00:58.17,0:01:00.87,Default,,0000,0000,0000,,almost one percent of their body weight an hour,
Dialogue: 0,0:01:00.87,0:01:04.46,Default,,0000,0000,0000,,so packing on the pounds is crucial to their survival.
Dialogue: 0,0:01:04.46,0:01:06.50,Default,,0000,0000,0000,,However, more than the physical stress,
Dialogue: 0,0:01:06.50,0:01:08.25,Default,,0000,0000,0000,,migrating birds are now facing
Dialogue: 0,0:01:08.25,0:01:09.93,Default,,0000,0000,0000,,a new source of hardship:
Dialogue: 0,0:01:09.93,0:01:11.63,Default,,0000,0000,0000,,landscape change.
Dialogue: 0,0:01:11.63,0:01:13.26,Default,,0000,0000,0000,,Just imagine you're the one
Dialogue: 0,0:01:13.26,0:01:14.77,Default,,0000,0000,0000,,getting ready to take a trip.
Dialogue: 0,0:01:14.77,0:01:15.80,Default,,0000,0000,0000,,You've packed the car
Dialogue: 0,0:01:15.80,0:01:17.43,Default,,0000,0000,0000,,with everything you think you need,
Dialogue: 0,0:01:17.43,0:01:18.35,Default,,0000,0000,0000,,fueled up the tank,
Dialogue: 0,0:01:18.35,0:01:19.64,Default,,0000,0000,0000,,eaten a huge breakfast,
Dialogue: 0,0:01:19.64,0:01:21.06,Default,,0000,0000,0000,,and hit the road.
Dialogue: 0,0:01:21.06,0:01:22.93,Default,,0000,0000,0000,,You've taken this journey before.
Dialogue: 0,0:01:22.93,0:01:24.56,Default,,0000,0000,0000,,You know all your favorite rest stops
Dialogue: 0,0:01:24.56,0:01:27.18,Default,,0000,0000,0000,,and little back-alley diners to grab a bite.
Dialogue: 0,0:01:27.18,0:01:29.10,Default,,0000,0000,0000,,Everything is planned out.
Dialogue: 0,0:01:29.10,0:01:30.90,Default,,0000,0000,0000,,But just as your fuel gauge starts
Dialogue: 0,0:01:30.90,0:01:32.24,Default,,0000,0000,0000,,dipping into the red zone,
Dialogue: 0,0:01:32.24,0:01:34.45,Default,,0000,0000,0000,,you pass by what should have been a gas station,
Dialogue: 0,0:01:34.45,0:01:36.12,Default,,0000,0000,0000,,except it's closed.
Dialogue: 0,0:01:36.12,0:01:37.46,Default,,0000,0000,0000,,"Not a problem," you think,
Dialogue: 0,0:01:37.46,0:01:39.74,Default,,0000,0000,0000,,"The next one can't be too far away."
Dialogue: 0,0:01:39.74,0:01:42.43,Default,,0000,0000,0000,,But then that next station never appears.
Dialogue: 0,0:01:42.43,0:01:44.100,Default,,0000,0000,0000,,Unfortunately, as you continue on your route,
Dialogue: 0,0:01:44.100,0:01:47.82,Default,,0000,0000,0000,,the reality of the situation starts to set in.
Dialogue: 0,0:01:47.82,0:01:49.66,Default,,0000,0000,0000,,More and more stations are closed
Dialogue: 0,0:01:49.66,0:01:51.51,Default,,0000,0000,0000,,or just erased from your map.
Dialogue: 0,0:01:51.51,0:01:53.50,Default,,0000,0000,0000,,All of a sudden, your routine trip
Dialogue: 0,0:01:53.50,0:01:55.09,Default,,0000,0000,0000,,has become a desperate search
Dialogue: 0,0:01:55.09,0:01:57.17,Default,,0000,0000,0000,,just to find somewhere safe to rest
Dialogue: 0,0:01:57.17,0:01:59.02,Default,,0000,0000,0000,,and refuel for the night.
Dialogue: 0,0:01:59.66,0:02:01.63,Default,,0000,0000,0000,,This scenario has become the reality
Dialogue: 0,0:02:01.63,0:02:03.89,Default,,0000,0000,0000,,for the majority of migrating song birds
Dialogue: 0,0:02:03.89,0:02:06.82,Default,,0000,0000,0000,,as human land development continues unchecked.
Dialogue: 0,0:02:06.82,0:02:09.32,Default,,0000,0000,0000,,Humans are altering important stop-over sites
Dialogue: 0,0:02:09.32,0:02:11.99,Default,,0000,0000,0000,,that birds have been using for generations.
Dialogue: 0,0:02:11.99,0:02:14.48,Default,,0000,0000,0000,,As migrators pass over the continent,
Dialogue: 0,0:02:14.48,0:02:15.90,Default,,0000,0000,0000,,they run a gauntlet of dangers,
Dialogue: 0,0:02:15.90,0:02:18.90,Default,,0000,0000,0000,,including pesticide ingestion in rural farmlands,
Dialogue: 0,0:02:18.90,0:02:21.19,Default,,0000,0000,0000,,habitat loss in suburban developments,
Dialogue: 0,0:02:21.19,0:02:23.90,Default,,0000,0000,0000,,as well as disorientation from light pollution,
Dialogue: 0,0:02:23.90,0:02:25.36,Default,,0000,0000,0000,,and even structure collision
Dialogue: 0,0:02:25.36,0:02:28.70,Default,,0000,0000,0000,,with tall, reflective glass buildings in cities.
Dialogue: 0,0:02:28.70,0:02:31.46,Default,,0000,0000,0000,,Of the estimated 20 billion individual birds
Dialogue: 0,0:02:31.46,0:02:33.74,Default,,0000,0000,0000,,that comprise the fall population,
Dialogue: 0,0:02:33.74,0:02:35.56,Default,,0000,0000,0000,,only about half will return
Dialogue: 0,0:02:35.56,0:02:37.39,Default,,0000,0000,0000,,to breed the following spring.
Dialogue: 0,0:02:37.39,0:02:39.21,Default,,0000,0000,0000,,Almost one billion of these deaths
Dialogue: 0,0:02:39.21,0:02:42.17,Default,,0000,0000,0000,,are attributed just to building collisions.
Dialogue: 0,0:02:42.17,0:02:44.01,Default,,0000,0000,0000,,With such astounding yearly losses,
Dialogue: 0,0:02:44.01,0:02:45.80,Default,,0000,0000,0000,,humans risk more than just the loss
Dialogue: 0,0:02:45.80,0:02:48.48,Default,,0000,0000,0000,,of the beautiful colors and songs of birds,
Dialogue: 0,0:02:48.48,0:02:51.48,Default,,0000,0000,0000,,they also play an important role in the ecosystem.
Dialogue: 0,0:02:51.48,0:02:53.51,Default,,0000,0000,0000,,Birds help with insect control,
Dialogue: 0,0:02:53.51,0:02:54.53,Default,,0000,0000,0000,,pollination,
Dialogue: 0,0:02:54.53,0:02:56.61,Default,,0000,0000,0000,,and disbursing seeds throughout the landscape.
Dialogue: 0,0:02:56.61,0:02:58.96,Default,,0000,0000,0000,,Without birds, the natural world
Dialogue: 0,0:02:58.96,0:03:00.26,Default,,0000,0000,0000,,would be a very different place.
Dialogue: 0,0:03:00.26,0:03:02.40,Default,,0000,0000,0000,,Although birds face an on-going threat
Dialogue: 0,0:03:02.40,0:03:03.84,Default,,0000,0000,0000,,from human land development,
Dialogue: 0,0:03:03.84,0:03:06.32,Default,,0000,0000,0000,,there are actions that we can all take to help.
Dialogue: 0,0:03:06.32,0:03:07.71,Default,,0000,0000,0000,,Many countries and local governements
Dialogue: 0,0:03:07.71,0:03:09.43,Default,,0000,0000,0000,,have already passed important laws
Dialogue: 0,0:03:09.43,0:03:12.26,Default,,0000,0000,0000,,that restrict the use of poisonous pesticides.
Dialogue: 0,0:03:12.26,0:03:14.58,Default,,0000,0000,0000,,By using more natural, plant-based products,
Dialogue: 0,0:03:14.58,0:03:16.56,Default,,0000,0000,0000,,we can maintain our farms and gardens
Dialogue: 0,0:03:16.56,0:03:18.64,Default,,0000,0000,0000,,without the dangerous side effects.
Dialogue: 0,0:03:18.64,0:03:21.75,Default,,0000,0000,0000,,In addition, as our global populations continue to grow
Dialogue: 0,0:03:21.75,0:03:23.86,Default,,0000,0000,0000,,and people need places to call home,
Dialogue: 0,0:03:23.86,0:03:26.16,Default,,0000,0000,0000,,green spaces can offer both bird habitat
Dialogue: 0,0:03:26.16,0:03:28.42,Default,,0000,0000,0000,,as well as a peaceful and natural place
Dialogue: 0,0:03:28.42,0:03:29.67,Default,,0000,0000,0000,,for us to enjoy.
Dialogue: 0,0:03:30.40,0:03:31.42,Default,,0000,0000,0000,,Small changes at home
Dialogue: 0,0:03:31.42,0:03:33.42,Default,,0000,0000,0000,,can also make a huge difference.
Dialogue: 0,0:03:33.42,0:03:34.42,Default,,0000,0000,0000,,By hanging up feeders
Dialogue: 0,0:03:34.42,0:03:36.95,Default,,0000,0000,0000,,and building bird houses in outdoor areas,
Dialogue: 0,0:03:36.95,0:03:38.95,Default,,0000,0000,0000,,we can provide much-needed food and safety
Dialogue: 0,0:03:38.95,0:03:40.82,Default,,0000,0000,0000,,during long migrations.
Dialogue: 0,0:03:41.59,0:03:43.16,Default,,0000,0000,0000,,Turning out lights in suburban
Dialogue: 0,0:03:43.16,0:03:43.99,Default,,0000,0000,0000,,and urban environments
Dialogue: 0,0:03:43.99,0:03:45.08,Default,,0000,0000,0000,,can also help birds
Dialogue: 0,0:03:45.08,0:03:47.30,Default,,0000,0000,0000,,that look for stars to navigate.
Dialogue: 0,0:03:47.30,0:03:49.33,Default,,0000,0000,0000,,With our help, these sky travellers
Dialogue: 0,0:03:49.33,0:03:51.38,Default,,0000,0000,0000,,can reach their destination safely,
Dialogue: 0,0:03:51.38,0:03:54.64,Default,,0000,0000,0000,,and hopefully keep returning year after year.