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00:30The harbour. It springs up in the Müritz National Park and forms one of the most important river and lake landscapes in Europe.
00:46The enormous animal wealth is closely linked to the river.
00:54It offers the stage for fascinating stories.
01:00But the harbour is also a waterway. On its way to the mouth of the Elbe, man is omnipresent.
01:20Nature and man have long been in conflict. Along the harbour, this is slowly beginning to change.
01:31Winter in Mecklenburg-Vorpommern.
01:43Winter in Mecklenburg-Vorpommern.
01:48The spring lakes of the harbour lie under an ice layer.
01:51A guest from the south of Europe. The silver-collar worker at work.
02:05The ice edge is very thin. But it's no use. He has to run to the open water to hunt.
02:14His bony beak is a deadly weapon. But only if his prey is not faster.
02:26This time it worked, even if it was only a small fish.
02:33The big one attracts the otter ashore.
02:36His advantage, he can dive for the fish.
02:47The silver-collar worker stays close. Maybe the otter leaves a rest here.
02:58A devastating game of patience begins.
03:01The harbour springs up in the north of the Müritz National Park from spring lakes.
03:07A beautiful concrete shell marks the beginning of the river, because a real spring is missing.
03:16The harbour water flows 334 kilometers from here to the Elbe.
03:23In the spring area, the young harbour is open even in the middle of winter.
03:26The bays and lakes downstream are mostly frozen.
03:32Bad times for sea eagles, because they only find a few prey now.
03:41A few fish are frozen on the edge of a pond.
03:45Such a natural refrigerator is therefore a popular attraction.
03:50Especially young eagles come here to eat.
03:55They are recognizable by the spotty dark plumage and the dark beak.
04:01They still look helpless and curious.
04:05What kind of big discs are these, for example? Can you eat them?
04:11Or at least play with them?
04:20The young harbour is a perfect place for them.
04:24They can spend the whole day here.
04:28The young harbour is a perfect place for them.
04:39It doesn't seem to be quite clear to the eagles.
04:44But what is hidden under the ice is much more interesting.
04:52The deep-frozen food attracts eagles from many kilometers around.
04:57The harder the winter, the more of the big birds of prey gather.
05:07The fish are defended with threats.
05:11Only attacks from the air help.
05:18In general, everyone tries their luck.
05:21Only the experienced old birds stay out and wait for the right moment.
05:37And the right moment has come, when someone wants to secure his prey from the hungry moult.
05:52The old eagle needs only one try.
06:00And the young have learned something again.
06:11The winter gatherings only dissolve when ice and snow disappear and the sea eagles are back everywhere at the harbour.
06:22A few kilometers away from the spring lakes, the harbour becomes wider.
06:28Small ships can already sail.
06:32For the most part, the shores are nature-dependent and fenced with reeds.
06:37Especially on the numerous lakes that the river connects with each other and that make it so extraordinary.
06:43Here is the nursery of many species of fish.
06:47The reed jungle of the Havelufer is like made for the king of predators, the pike.
06:54In every lake, the animals have spawned in March.
06:58In the warmer water on the shore, the eggs can develop quickly.
07:08After about ten days, the young pikes hatch.
07:17Thanks to a special headdress, the larvae can stick to plants.
07:22In the first days, they live off the stock in their burrow.
07:38But after four days, they look like real fish.
07:42The typical pike head is already recognizable.
07:46And as it should be for a predator, the mini-pikes immediately go on the hunt.
07:53Some portions, however, are a bit too big.
07:57The first days of spring at the harbour.
08:01The sun is already warming a little and creates a mating atmosphere in the bird world.
08:05It is particularly loud and exciting with the gray geese.
08:15The first days of spring at the harbour.
08:19The sun is already warming a little and creates a mating atmosphere in the bird world.
08:28It is particularly loud and exciting with the gray geese.
08:35The male goose has plenty of ground to snort.
08:39A foreign pair has entered his territory.
08:49Impress your own female and at the same time keep the intruders at a distance.
08:55That's a lot of work for the goose.
09:05The male goose has plenty of ground to snort.
09:09A foreign pair has entered his territory.
09:13A foreign pair has entered his territory.
09:30He does not deal much more hostilely with his own female partner.
09:33But this is normal with geese.
09:46The bond between the two is thus closed.
09:50And little by little, peace returns to the geese territories.
09:58The breeding season begins.
10:04The first days of spring at the harbour.
10:18In the forests along the harbour it gets colourful.
10:22The larch spawn spreads its flower carpets.
10:26Hummingbirds come to collect nectar.
10:29The larch spawn hides the sweet energy drink in its deep calf.
10:36This is no problem for garden hummels with their long trunks.
10:40They drink from the calf and pollinate the plant.
10:45The earth hummel with its short trunks should actually be empty.
10:50But it helps with a trick.
10:52The earth hummel stings the ground of the calf from the outside
10:56and simply sucks up the nectar.
10:59And the larch spawn goes empty when pollinated.
11:06The colour pots on the forest floor are of short duration.
11:10The larch spawn only blooms until the trees close their leaves.
11:23The Harbour of Brandenburg
11:31On its way to the south, the harbour reaches Brandenburg
11:35and wanders through the forests of the nature park Uckermärkische Seen.
11:39Since 1997, the area of the size of Berlin has been under protection.
11:52On over 100 kilometres of water hiking trails,
11:56you can explore the area at the harbour
11:59and experience a unique animal world in many places.
12:10Beavers have spread everywhere since the 1990s.
12:17Inside the man's high beaver castle, the mother takes care of the offspring.
12:23In their first four to six weeks of life, the young ones remain in the building.
12:29There is not much to do there while waiting for the next meal.
12:44The mother breastfeeds the young beavers for two to two and a half months.
12:49However, the young ones can already eat plants at the age of eight days.
12:55Now, however, the mother's milk bath is the first choice.
13:08Right next to the beaver castle, the offspring of the tortoise is dragged.
13:13The tortoise feed on algae and plant particles in the shore.
13:19They have long become the target of a skilled hunter.
13:24The larva of the blue-green mosaic jungle lurks on the ground.
13:32It uses a hunting tool to imitate the tortoise, which is unique in the animal kingdom.
13:42A catch mask, a special embellishment of the lower lip of the dragonfly.
13:49The catch mask speeds up in two hundredths of a second.
13:53This can only be seen in slow motion.
14:13After two to three years in the water, the dragonfly larvae climb ashore and make a wonderful change.
14:23They turn into a flying insect.
14:27A process that can take five hours.
14:30The dragonfly pumps air into her body to literally drive it out of the skin.
14:39The most dangerous moment of her life.
14:42She is now completely helpless and wounded.
15:12The wings are folded at the beginning and only have to be inflated.
15:18They are still milky and soft like the whole insect.
15:24Since the body of the adult animal resembles the larva,
15:28in contrast to butterflies, one speaks of an incomplete transformation.
15:32The pale body turns into the typical drawing of the mosaic jungle.
15:37Now the dragonfly only has to harden in the sun and her second life begins.
15:42As a flying insect, looking for a partner.
15:46In summer, Havel attracts numerous water tourists.
15:50To be a captain yourself,
15:53on the many lakes of the Upper Havel,
15:56which are tied together like on a pearl string,
15:59no problem.
16:01But it's not always easy.
16:04You have to get used to it.
16:07You have to get used to it.
16:10You have to get used to it.
16:12But if you are ready for each other, no problem.
16:20Gliding calmly and being close to the river.
16:24You can't do that anywhere better than on the Upper Havel.
16:27The region is extremely thinly populated and therefore a perfect habitat for the largest
16:45domestic grouper, the sea eagle.
16:49On a tree just a few meters from the harbour, the mother eagle and her offspring are waiting for food.
17:00The little ones are about five weeks old and always hungry.
17:04All begging does not help, first the father has to catch a fish.
17:08The mother flies towards him.
17:12The visit probably reminds the male of his duties.
17:18Finally it's time to eat.
17:22The young ones in the meantime digest the leftovers.
17:26On good hunting days, the groupers lay down supplies in the house.
17:31The father has discovered something.
17:42Sea eagles often prey on sick or dead fish that swim on the surface.
17:57The couple shares the work.
17:59The father catches, the mother feeds.
18:02With her huge beak she tears off small pieces, just big enough for the young.
18:12The father seems to like it.
18:14He sets off again for the prey flight.
18:20However, he keeps the second fish of the day for himself.
18:27His family is well taken care of for the time being.
18:30The sea eagles appreciate the harbour because of its fish wealth.
18:35The people in Annenwalde used the river as a means of transport centuries ago.
18:42The place, in the heart of the Uckermark lake landscape, has just 100 inhabitants.
18:48But because of its glass hut, it has become a tourist attraction.
18:55A glassmaker from Mecklenburg built it in 1754.
19:00The fuel came across the harbour to melt the glass.
19:05In 2000, the glassmaker and sculptor Werner Kothe and a few companions
19:11revived the old craft in Annenwalde.
19:15A few weeks later.
19:17A drama took place with the sea eagles.
19:22Only the older young bird survived.
19:25Its little brother is lying dead in the house.
19:30Under unfavorable breeding conditions, the young bird meets a new life.
19:36The young bird is still alive.
19:40Under unfavorable breeding conditions, it often meets the nest.
19:50Bad weather makes life difficult for the eagle parents.
19:54In the rain, they don't see their prey in the water properly.
19:59The boy is constantly hungry and becomes more and more aggressive.
20:02But the mother can't do anything.
20:05The father had no success.
20:08With such a rabid offspring, only the flight remains.
20:18Waiting for better weather and dieting with leftovers from the day before.
20:24In the Röhricht on the Havelufer, another mother is also taking care of her offspring.
20:29A dwarf mouse, just before the move.
20:32Their little ones are five days old.
20:35The smell of the old nest could attract enemies.
20:40So the little ones are quickly converted.
20:43The mother has to take care of the little ones.
20:46The mother has to take care of the little ones.
20:49The mother has to take care of the little ones.
20:52The mother has to take care of the little ones.
20:55Since the dwarf mouse lives in the reed and builds ball nests at a height of one meter, it is not that easy.
21:01Each young one is transported individually over the fluctuating rescue path in the mouth.
21:07A force act, but it is necessary so that no fox or marder bites the young and their nest.
21:17A force act, but it is necessary so that no fox or marder bites the young and their nest.
21:23A force act, but it is necessary so that no fox or marder bites the young and their nest.
21:33About 50 kilometers north of Berlin, the Havel changes its face.
21:38The Zedenecker Tonstiche.
21:41In 1887, abundant clay deposits were discovered here.
21:45Around 1900, the region developed into one of the largest reed areas in Europe.
21:52The old Ziegelbahn still remembers this time in the Ziegeleipark Mildenberg.
21:57The park is one of the most important industrial culture cities in Germany.
22:05The journey through the Tonstich area is not just a journey into industrial history.
22:10Gray geese greet their young at the ponds and on the meadows in between.
22:17They are as used to the visits of people as they are to the noise of the old locomotive.
22:31The iron monstrum is still no reason for the little geese to interrupt their nesting.
22:37After all, the parents always have a watchful eye on the offspring.
22:47This will change soon.
22:49At the latest after two months, the chicks have to cope on their own.
23:06The Havel flows towards Berlin.
23:09With the proximity to the capital, nature enters the background.
23:17The river expert of the NABU, Rokko Buchter, sees this critically.
23:21Reef fortifications force the river into Oranienburg everywhere.
23:27It could go a little wilder,
23:30says the nature guardian who leads the renaturation of the Havel at the foot of the river.
23:37First of all, you have to realize that there is no traceable traffic here.
23:42And so these stone fortifications are not necessary here.
23:46There are no claims to see how this is justified.
23:50Completely natural banks could be allowed here.
23:57Rokko Buchter cannot discover much nature at the Havel in Oranienburg.
24:02The fortified banks and the people on the river, however, bother one animal little.
24:08The nutria.
24:13The rodent, which is often thought to be a beaver,
24:16has rapidly multiplied at the Havel.
24:25Just like beavers, nutrias feed on vegetables.
24:29They are native to South America
24:32and were bred in fur farms in the GDR because of their dense fur.
24:38After the turn of the century, breeding became unprofitable
24:41and many animals were simply released.
24:45At the waters, they can become a plague,
24:48because they dig their burrows into the shore and can pierce dams.
24:56The Havel reaches the capital, Berlin.
25:00The city of Oranienburg, the capital of Berlin,
25:03is the capital of the city of Oranienburg.
25:06The city of Oranienburg is the capital of the city of Oranienburg.
25:10The Havel reaches the capital, Berlin.
25:17At the Spandau citadel, the Spree flows into the Havel.
25:21The castle was built in the Middle Ages.
25:24It is one of the most beautiful renaissance fortresses in Germany
25:27and already during the day an impressive view.
25:34It becomes really exciting, especially at night,
25:37in the citadel.
25:41There is still peace in the fire passages of the bastions.
25:53But when the sun has set, it becomes alive in the old wall.
26:05bats swarm through the endless corridors,
26:08where the cannons thundered centuries ago,
26:11the threatened mammals survive today.
26:19It is swarming time.
26:21The bats' mothers show their young in late summer
26:24the future winter quarters.
26:27In the masonry, the bats will crawl into cracks and crevices.
26:38Researchers counted about 10,000 animals
26:41who slept in the castle in winter.
26:47The citadel is thus one of the largest bat quarters in Europe.
26:53BATS
27:06Nowhere is holiday more beautiful than in the famous beach of Bad Wannsee.
27:11At least many Berliners think so, and for over 100 years.
27:15Shortly after the opening in 1907,
27:18on some days over 200,000 bath guests came.
27:22As many as today throughout the year.
27:27Just as typical and famous as the beach bath
27:30are the bats for Wannsee and Havel.
27:34Conny Frobös sang the bathing with the little sister,
27:38but already Theodor Fontane described the big white birds.
27:43At the time of the poem, however, they were eaten,
27:46because they were easy to hunt.
27:54On their way through the lakes between Berlin and Potsdam,
27:58the port touches many places of German history.
28:01The Glienicke Bridge,
28:03which became known as the agent bridge in the Cold War.
28:07For tourists, it is a permanent visitation program.
28:11The place where the USA and the Soviet Union
28:14used to exchange their unmasked spies.
28:19The Hans-Otto-Theater.
28:24The Dutch Quarter.
28:28The Nau Natur.
28:32And the Nikolai Church.
28:34Attractions along the Havel,
28:37that make Potsdam so special.
28:42But there is also a place for nature in Potsdam.
28:48In the Nothepark, in the middle of the city, beavers are at home.
28:52A few branches on the shore show that this is their castle.
28:58The little beavers came out of the building in the last evening light.
29:02The parents have already taught them the most important thing.
29:06Feather care is a must for beavers.
29:09Mother beaver does it.
29:11After all, the dense fur must protect against cold and wetness reliably.
29:23Even the jump into the water beavers have to practice first.
29:27At the beginning they are even water-shy,
29:30but can swim from birth.
29:35The second most important thing for a beaver they learn now.
29:39Where the tastiest branches can be found.
29:44The little beavers will be on their excursions around the castle
29:47learn quickly from the parents.
29:52The green belts along the Havel are their dining room.
29:55Weeding, herring and poplar the main food.
30:08A beaver has to weeding every night to get enough branches.
30:12In doing so, he covers everything from the bark to the leaves.
30:24The beaver in the middle of living in Potsdam was not always like that.
30:28For a long time, the big beavers were at the Havel
30:31and the little beavers in the middle of the castle.
30:35For a long time, the big beavers were at the Havel.
30:39Hunting and the destruction of their habitats made it impossible for them.
30:47Only targeted protection measures since the 1960s
30:51led to beavers from the Elbe spreading again.
30:56Right behind Potsdam in the direction of Werder,
30:59the Havel makes all the honors in its name.
31:02Bay-rich river means the Slavic word Havel.
31:06Sea rides on sea, like in the nature reserve Kätziner Havelinseln.
31:26Schilf swarms along the banks for kilometers.
31:30In this jungle of reeds, specialists are at home.
31:34They are adapted to life in the vertical.
31:45A pair of drosselrohr singers has built their nest in the swinging reed forest.
31:50The four boys in the fall are constantly hungry,
31:54so that both parents have to provide for the brood.
32:00They don't have to fly far.
32:02The reeds of the Havel are full of insects.
32:05The parents feed in minutes.
32:11With so much work, there is actually no reason to argue about feeding.
32:20Who has kept the upper hand is hard to say.
32:23Mother and father look the same.
32:31The little drosselrohr singers will soon be chicks.
32:36In the neighboring area, the nest has already served.
32:39However, the drosselrohr singer offspring looks a bit strange here.
32:43A cuckoo child, the drosselrohr singers have distinguished themselves.
32:49The glowing rooster and the constant prayer.
32:53The involuntary parents can not help but feed the cuckoo like their own young.
33:02Right at the beginning of the brood, the cuckoo female has laid the egg in the nest for the drosselrohr singers.
33:08The young cuckoo hatches earlier and simply throws the other eggs out of the nest.
33:14The drosselrohr singers then raise the huge cuckoo child as if it were their own.
33:28Not everywhere is there a reed on the Havel.
33:31Where the shipping company still has a lead, the shores are fortified with stones.
33:39The mink feels comfortable on such shores.
33:42The American mink has been spreading since the 1950s in Germany.
33:53The small predators are often escaped from fur farms and were released.
33:58In the meantime, they have largely repressed the native species, the European mink.
34:03Shipping has become rare on the Havel.
34:06And so in 1996 the plan was made to give up the lower Havel as a waterway.
34:12A huge chance for nature.
34:15From the Brandenburg Preserve towards Mündung, the Havel is to become wild again.
34:20At the largest European river renaturation, old arms are connected to 90 kilometers
34:27and shore fortifications are eliminated.
34:31In addition, dike sections are to be rebuilt.
34:34Floods, such as here at Kuhlhausen, will ensure that meadows can be flooded again with high water.
34:46The excavators therefore shovel at the same time for the high water and the nature reserves.
34:57For the expert from the NABU, Rokko Buchter, this is a dream come true.
35:03Since the lower Havel is no longer run by large freight ships
35:07and the water maintenance has been changed, we have dikes and shallow water areas again.
35:12There will be a number of species stabilizing what belongs here.
35:17Others may come back, that is our quiet hope.
35:20The meadows will be flooded again.
35:23The meadows will be flooded again.
35:26And of course the reeds and water plants will come back.
35:30And that means that mussels, which need sand and shallow water zones, will be the first to benefit.
35:38Rokko Buchter hopes that the entire region will benefit from the nature conservation project.
35:48The Havel water also brings biodiversity back to the meadows.
35:54Special beneficiaries are the meadows like Kiebitz and Uferschnepfe, which are threatened everywhere.
36:06Even rare migratory birds like warthogs will then find rest areas again.
36:13On the meadows, roosters and lichens grow instead of uniform greens from agriculture.
36:20Not only the color of the wet meadows make the lower Havel lowlands so valuable.
36:27Even where it is drier, many rare animals live.
36:32The troop training ground Glitzerheide.
36:35More than 9,000 hectares of forest and heather landscape stretch between armored wrecks.
36:42A strange habitat framed by Havel and Elbe,
36:46like it was created for an extremely bizarre bird.
36:51The Widerhop.
37:00A pair of his young grows up in an old tank.
37:05The heather landscape offers the best conditions for the Widerhop.
37:09There, their favorite food is still abundant.
37:12Grilling and hunting.
37:18In the seclusion of the troop training ground, around 15 brood pairs live.
37:23In many other areas, the Widerhop and the Widerhop breeders live alone.
37:29In the sheet metal box it is hot and Widerhops are known for their stinging smell.
37:34But where else can you find such a well-secured shelter for his chicks?
37:49Late summer in the Glitzerheide.
37:53With the heather flower, it gets loud on the troop training ground.
38:06The Widerhop.
38:09The Widerhop.
38:12The Widerhop.
38:15The Widerhop.
38:18The Widerhop.
38:23The roar of the red deer begins.
38:33For the strongest males, these are the two most exhausting weeks of the year.
38:42They have to keep an eye on their rivals and impress as many females as possible.
38:48Every male guards a harem of deer cows and makes this very clear.
39:00But if two of the same hit each other, no more roaring is useful.
39:12With their antlers, the opponents hook into each other.
39:17The goal is not to injure the other, but to determine the stronger one.
39:39The winner then looks around the females.
39:43But even the field deer has to wait until his chosen ones are ready.
40:03A few kilometers further down the Havel.
40:06At Lake Gülper it gets even louder in autumn.
40:12Geese
40:18Thousands and thousands of geese from the north come here in autumn.
40:24Lake Gülper is one of the largest overwintering areas of northern geese at the port.
40:29The birds fly to the surrounding meadows in the morning to eat fat supplies for the long flight and the approaching winter.
40:49In the course of autumn, more and more come.
40:52In peak times, 100,000 geese populate the lake.
41:00Only late in the evening, when the last birds have returned to their sleeping places, peace returns.
41:11When night falls in Westhaveland, another attraction of the country shows up.
41:17It is one of the darkest places in Europe.
41:20The region was therefore declared the first German star park in 2014
41:26and since then attracts hobby astronomers from all over the world.
41:45Downstream, behind Lake Gülper, the Havel-Sachsen-Anhalt reaches.
41:51Once again, the river honors its original name.
41:55Countless bays, old harbors and lakes create a mosaic of diverse and nature-like habitats.
42:08The sea eagles have finished their brood and their offspring is now on their own.
42:16The young bird will not have any problems at the harbour to find enough food.
42:26Like his parents, he will soon have a territory.
42:30Maybe even somewhere in the renaturalized areas along the harbour,
42:35whose water combines with that of the Elbe after more than 330 kilometers.
42:55To be continued...
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