All language subtitles for Earth.Odyssey.With.Dylan.Dreyer.S05E13.1080p.WEB.h264-DiRT_track3_[eng]

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NARRATOR: WHEN YOU SEE THIS
SYMBOL, YOU KNOW YOU'RE

WATCHING TELEVISION THAT IS
EDUCATIONAL AND INFORMATIONAL.

THE MORE YOU KNOW ON NBC.

DYLAN: HI EVERYONE, I'M DYLAN
DREYER.

WE ARE ABOUT TO SET OFF ON AN
AMAZING ADVENTURE ON

"EARTH ODYSSEY".

TODAY, WE TAKE TO THE SKIES OF
AFRICA FOR A LOOK AT SOME OF THE

WORLD'S MOST AMAZING AVIANS,

LIKE THIS LIGHTWEIGHT WEAVER WHO

PREFERS A HEAVYWEIGHT NEST.

WHEN IT COMES TO FISHING SKILLS,
ONE SPECIES IS KING.

AND LATER, WE'LL SEE HOW FAR
SOME BIRDS GO TO KEEP CLEAN AT

ALL COSTS.

BUT FIRST, WE MEET A HERON SO
BIG, IT CONFIDENTLY STANDS UP TO

ONE OF AFRICA'S MOST FORMIDABLE
PREDATORS.

THIS AND SO MUCH MORE COMING UP
ON TODAY'S EPISODE OF

"EARTH ODYSSEY".

[MUSIC]

DYLAN: THROUGHOUT THE SKIES,
TREES, AND RIVERBANKS OF THE

AFRICAN SAVANNAH, SOME OF THE
WORLD'S MOST STRIKING AND UNIQUE

BIRDS MAKE THEIR HOMES.

THESE FASCINATING FEATHERED
CREATURES ARE AS VERSATILE AS

THEY ARE PLENTIFUL, POPULATING
THE REGION WITH THEIR BEAUTIFUL

PLUMAGE, CURIOUS BEHAVIORS.

EACH HAS THEIR OWN WAY OF DOING
THINGS, AND NO TASK IS MORE

INDIVIDUAL THAN THE BUILDING OF
A NEST.

THESE STORKS ARE BUSY GATHERING
BUILDING MATERIALS FOR

THEIR NESTS.

IT'S A TASK THAT TAKES TIME AND
DEDICATION.

MALE OR FEMALE, DEPENDING ON THE
SPECIES, BIRDS SHOW DIFFERENT

DEGREES OF INTEREST IN BUILDING
THE NESTS.

WITH THESE VULTURES, BOTH
MEMBERS OF THE COUPLE TAKE PART

IN THE BUILDING PROJECT, BUT
THEIR NEST IS RUDIMENTARY,

CONSISTING OF A ROUGH FRAMEWORK
OF TWIGS AND BRANCHES, WHICH

WILL PROBABLY BE HOME TO A
SOLITARY EGG.

THESE GREAT BIRDS WITH THEIR
FIVE-FOOT WINGSPAN ALWAYS BUILD

THEIR NESTS HIGH UP IN THE
TREETOPS SO THAT THEY CAN EASILY

TAKE FLIGHT.

NEARBY, THERE NESTS A BIRD WHO
REFUSES TO GO TO SUCH TROUBLE.

IT BELONGS TO A SPECIES THAT
RATHER THAN BUILD ITS OWN NEST,

PREFERS TO MOVE INTO SOMEONE
ELSE'S.

THIS IS THE GIANT EAGLE OWL,

AND THE HUGE NEST IT HAS TAKEN
OVER

USED TO BELONG TO A HAMERKOP.

THE HAMERKOP IS A SMALL,
UNUSUAL-LOOKING MEMBER OF THE

HERON FAMILY, QUITE DIFFERENT
FROM ITS RELATIVES, IN

PARTICULAR, THE LARGEST OF THEM,
THE GOLIATH HERON.

THIS WADER IS COMPLETELY
UNCONCERNED BY THE ARRIVAL ON

THE RIVERBANK OF AN ENORMOUS
CROCODILE, AS IN FACT, IT HAS

LITTLE REASON TO FEAR IT.

THE HERON IS FIXATED ON ITS GOAL
OF CATCHING A FISH TO FEED ITS

TWO CHICKS, WHO ARE BEING CARED
FOR BY ITS MATE IN THE NEST

THEY'VE BUILT A LITTLE FARTHER
ALONG THE RIVERBANK.

THE HERON CHICKS ARE LESS THAN
TWO WEEKS OLD.

EACH ONE HATCHED FROM AN EGG THE
SAME SIZE AS A CHICKEN'S, AND

THEIR PARENTS TOOK TURNS TO SIT
ON THEM FOR A MONTH.

THEY WILL NOT STAY IN THE NEST
FOR LONG.

WITHIN THREE WEEKS, THEY'LL BE
OUT AND ABOUT.

IT'S NEARLY TIME FOR THESE TWO
GRAY HERONS TO LEAVE THE NEST.

THEY NEED JUST A FEW MORE DAYS.

THE ONLY PREREQUISITE FOR
LEAVING IS BEING ABLE TO FLY.

BIRDS' NESTS ARE PURELY
TEMPORARY DWELLINGS.

THEIR FUNCTION IS TO BE A HOME
FOR THE EGGS AND THE CHICKS

DURING THEIR EARLY DAYS.

THEY'RE NEVER INTENDED TO BE
PERMANENT HOMES.

WHEN IN TIMES OF BAD WEATHER,
THE BIRDS DO NOT TAKE TO THEIR

NESTS, BUT PERCH LIKE THESE
WATTLED STARLINGS EXPOSED

TO THE ELEMENTS.

CLINGING TO ITS BRANCH, THIS
CATTLE EGRET IS CARRYING OUT

SOME RUNNING REPAIRS TO ITS
PLUMAGE RUFFLED BY THE RAIN.

DOWN ON THE GROUND, THIS
BLACK-BELLIED BUSTARD'S HABITS

NEVER CHANGE.

SHE CALLS, ANNOUNCING THAT THIS
IS HER TERRITORY, PROUD,

PROTECTIVE, AND VOCAL
YEAR-ROUND.

[BIRD SQUAWKING]

COMING UP, A SMALL SAVANNAH
NATIVE SHOWS US THEIR

HEAVYWEIGHT CONSTRUCTION SKILLS.

AND WE GET AN ANGLING LESSON
FROM THE FISHING KING

OF THE SAVANNAH.

PLUS, THE MOST DEDICATED BIRD
BATHERS SHOW THEIR

SHOWERING SKILLS.

THIS AND MORE WHEN "EARTH
ODYSSEY" RETURNS.

.

NARRATOR: WE NOW RETURN TO THE
MORE YOU KNOW ON NBC.

DYLAN: WHEN THE WIND STARTS TO
BLOW ACROSS THE SAVANNAH, BIRDS

HAVE LITTLE TROUBLE HOLDING ONTO
THE BRANCHES AND KEEPING

THEIR BALANCE.

THEIR TAILS ACT AS
COUNTERBALANCES, AND THEIR CLAWS

GIVE THEM A STRONG GRIP.

THE STRONG WIND HASN'T HINDERED
THIS ROLLER'S HUNTING...

...AND WON'T PREVENT THIS YOUNG
AFRICAN FISH EAGLE FROM

TAKING OFF.

BUT FLIGHT REQUIRES BIRDS TO
EXPEND VAST AMOUNTS OF ENERGY,

AND THIS CAN EVENTUALLY OUTWEIGH
THE BENEFITS OF

CATCHING ITS PREY.

IN FACT, RAIN, WIND, AND THE
COLD ARE THE MAIN CAUSES OF THE

HIGH MORTALITY RATE AMONG BIRDS.

JUST TO MAINTAIN THEIR CORE BODY
TEMPERATURE, BIRDS CAN EXPEND UP

TO 20 PERCENT OF THEIR ENERGY.

IN ORDER TO IMPROVE ITS CHANCES
OF SURVIVAL, THE SOCIABLE WEAVER

HAS DECIDED TO BECOME THE
EXCEPTION TO THE RULE AND MAKE

USE OF THEIR NEST FAR BEYOND
THAT OF OTHERS.

IT OFTEN SPENDS A YEAR LIVING IN
THE REMARKABLE NEST IT BUILDS.

SOME BIRDS CHOOSE TO LIVE IN
REGIONS WHERE THE CONDITIONS ARE

EXTREME, WHERE FOOD AND WATER
ARE SCARCE, THE DAYS ARE BLAZING

HOT, AND THE NIGHTS ARE COLD.

ENERGY MUST BE CONSERVED.

RATHER THAN WASTE THEIR ENERGY
REGULATING BODY TEMPERATURE,

THESE BIRDS USE THEIR NEST AS A
COOL COVER FROM THE SUN.

THIS SPECTACULAR TANGLE OF DRY
GRASS HAS REMARKABLE

INSULATING PROPERTIES.

THESE NESTS, WHICH ARE KNOWN TO
BE THE LARGEST ON THE PLANET,

CAN BE HOME TO SEVERAL HUNDRED
BIRDS, BUT EACH PAIR HAS ITS OWN

ROOM AND PRIVATE ENTRANCE.

CONTINUALLY MAINTAINED BY THE
ENTIRE COLONY, THESE NESTS CAN

BE USED FOR DECADES,

WHILE THE SPOTTED-BACKED
WEAVER'S NESTS

ARE USED FOR JUST ONE SEASON.

THESE BIRDS ARE FIENDISHLY
SKILLFUL.

CONSTRUCTION BEGINS WITH A RING
FASHIONED AT THE END OF A TWIG,

AND THE BIRD THEN USES UP TO
SEVEN DIFFERENT KNOTS ALL TIED

WITH ITS BEAK.

THE METHOD IS TRIED AND TESTED.

BEGINNING WITH THE RING, THE
BIRD THEN WEAVES FROM TOP TO

BOTTOM TO ACHIEVE A SORT OF
PEAR-SHAPED POUCH.

THE ENTRANCE TO THE FINISHED
NEST IS AN OPENING

AT THE BOTTOM.

CONSTRUCTION TECHNIQUES VARY
FROM ONE SPECIES OF WEAVER BIRD

TO ANOTHER.

THESE BRANCHES, A FAVORITE OF
LOCAL GIRAFFES WITH THEIR LONG,

SHARP THORNS, ARE AN ESSENTIAL
COMPONENT OF THE RED-BILLED

BUFFALO WEAVER'S NEST.

WHILE THEY MAY ONLY MEASURE A
MERE EIGHT INCHES, THE

RED-BILLED BUFFALO WEAVER'S
NESTS ARE ENORMOUS, SOME

WEIGHING SEVERAL HUNDRED POUNDS;
HOWEVER, THEIR SIZE AND

DURABILITY IS ESSENTIAL FOR
THEIR PROLONGED USE.

THESE NESTS HAVE A LONG
LIFESPAN.

YEAR AFTER YEAR, THE BIRDS
MAINTAIN THEM, CONSTANTLY ADDING

TWIGS, PERFECTING THEIR
IMPRESSIVE CRAFTMANSHIP.

WHEN WE RETURN, WE MEET A
SKILLED SPECIES OF FLYERS

CONSIDERED AFRICA'S FISHING
ROYALTY.

AND LATER, FIND OUT HOW PROPER
PLUMAGE PLAYS AN INTEGRAL PART

OF THESE BIRDS' LIVES.

ALL OF THIS COMING UP ON "EARTH
ODYSSEY".

.

NARRATOR: WE NOW RETURN TO THE
MORE YOU KNOW ON NBC.

DYLAN: BIRDS LIVE A LIFE OF
CONSTANT STRUGGLE, FIGHTING THE

ELEMENTS TO KEEP WARM,
QUARRELING WITH RIVALS,

PROTECTING THEIR NESTS, AND
DEFENDING THEMSELVES AGAINST A

WIDE VARIETY OF PREDATORS.

YET DESPITE THIS EXHAUSTING
BATTLE FOR SURVIVAL, THE FIERCE

FLYERS OF THE AFRICAN SAVANNAH
ARE NEVER AFRAID TO PUT

UP A FIGHT.

THIS VERY DISTINCTIVE AFRICAN
HARRIER HAWK IS SYSTEMATICALLY

INVESTIGATING THIS DEAD TREE IN
THE HOPE OF FINDING ITS

NEXT MEAL.

THE TRUTH IS BIRDS' MAIN
PREDATORS ARE BIRDS.

THESE BLUE-EARED STARLINGS HAVE
SHELTERED THEIR BROOD IN THE

HOLLOWS OF THIS TREE TRUNK AND
HAVE NO HESITATION IN ATTACKING

THE PREDATOR TO MAKE IT GO AND
LOOK ELSEWHERE.

THE HARRIER IS EQUIPPED WITH
SPECIAL JOINTS IN ITS FEET,

WHICH ENABLE IT TO CLING ONTO
BRANCHES IN ANY POSITION.

BUT BIRDS OF PREY WILL ALSO
ATTACK ALL MANNER OF

REPTILES AND MAMMALS.

SOME ANIMALS KNOW ONLY TOO WELL
TO KEEP AN EYE TO THE SKIES.

THESE DWARF MONGOOSES HAVE
SPOTTED THE PRESENCE

OF A BATELEUR...

...A BIRD ALL THE MORE FEARSOME
BECAUSE IT SPENDS THE MAJORITY

OF ITS LIFE IN THE AIR.

IT FLIES FOR EIGHT TO NINE HOURS
A DAY, COVERING MORE THAN 150

MILES OF SAVANNAH, AND IT
PATROLS AT A LOW ALTITUDE.

CARNIVORES ASIDE, BIRDS HAVE A
WHOLE RANGE OF DIFFERENT DIETS.

THESE AFRICAN GREEN PIGEONS ARE
FRUIT-EATERS ENJOYING THE

DELIGHTS OF THIS FIG TREE.

THIS BROWN-HOODED KINGFISHER IS
GIVING THIS SPIDER

A WIDE BERTH...

...MAYBE BECAUSE OF THE FEAR OF
ITS VENOM, OR MORE LIKELY,

BECAUSE IT DOESN'T WANT TO GET
THE WEB IN ITS FEATHERS.

THIS TIME, IT HAS MANAGED TO
CATCH YET ANOTHER CRICKET.

THERE ARE TWO TYPES OF
KINGFISHERS.

SOME KEEP TO DRY LAND, WHILE
OTHERS ARE CLOSELY

LINKED TO WATER.

THIS MALACHITE KINGFISHER,
MEASURING LESS THAN SIX INCHES,

IS ONE OF THE SMALLEST.

IT HAS A VARIED DIET, HUNTING
FOR SMALL FISH AS WELL AS LARGE

AQUATIC INVERTEBRATES AND ALWAYS
UNDER THE WATCHFUL GAZE

OF ITS YOUNG.

LIKE MOST BIRDS, THE KINGFISHER
HAS TO CONSUME A LOT OF FOOD

RELATIVE TO ITS BODY WEIGHT, SO
IT KEEPS A CLOSE EYE ON THE

SWAMP, PATIENTLY WAITING FOR AN
OPPORTUNITY.

THIS TIME IT'S JUST AN INSECT, A
SMALL CATCH NOT WORTH SHARING.

A FISH IS QUITE ANOTHER MATTER.

THE CHICK WOULD QUITE LIKE TO
SHARE THIS ONE.

DOUBTLESS DISAPPOINTED BY THIS
TURN OF EVENTS, IT CAN ONLY WAIT

FOR THE RETURN OF THE NEXT
FISHING EXPEDITION.

BUT THE PARENT HAS OBVIOUSLY
DECIDED THAT IT'S HIGH TIME ITS

CHICK STARTED FENDING FOR
ITSELF.

COMING UP NEXT, FOR BIRDS, THE
ART OF STAYING CLEAN IS AS

UNIQUE AS THE BIRDS THEMSELVES.

THIS AND MORE WHEN "EARTH
ODYSSEY" RETURNS.

.

NARRATOR: WE NOW RETURN TO THE
MORE YOU KNOW ON NBC.

DYLAN: IT'S BREEDING SEASON FOR
THESE PIED KINGFISHERS, AND THE

BIRDS ARE BITTERLY DEFENDING
THEIR PURCHASE.

THESE BIRDS FLY VERY FAST,
SKIMMING THE SURFACE OF THE

WATER, OFTEN FLITTING FROM ONE
FISHING SPOT TO ANOTHER, BECAUSE

THEY EAT NOTHING BUT FISH.

WHEN THE KINGFISHER THRASHES ITS
PREY TO MAKE IT EASIER TO

SWALLOW, THE BIRD'S FEATHERS GET
COVERED IN MUCOUS.

SO, ONCE IT HAS FINISHED ITS
MEAL, IT AUTOMATICALLY RETURNS

TO THE WATER TO TAKE A BATH.

THE SAME PLUMAGE CONCERNS AND
THE SAME BEHAVIOR APPLY TO THE

WOODLAND KINGFISHER, WHICH DIVES
TIME AND TIME AGAIN.

BIRDS ARE GREAT BATHERS.

IT'S A WAY FOR THEM TO KEEP COOL
AND HELP KEEP THEIR

FEATHERS CLEAN.

KEEPING THEIR FEATHERS IN GOOD
CONDITION IS SO IMPORTANT FOR

BIRDS, THAT THEY DEVOTE A LARGE
PROPORTION OF THEIR TIME TO IT.

EACH SPECIES HAS ITS OWN WAY OF
GOING ABOUT THIS.

FRANCOLINS FAVOR DUST BATHS.

THIS MARABOU STORK IS DOING
SOMETHING THAT ALL THE BIRDS DO.

IT IS METICULOUSLY PUTTING ITS
FEATHERS ONE BY ONE

BACK IN PLACE.

YELLOW-BILLED STORKS GO AS FAR
AS TAKING CARE OF ONE

ANOTHER'S PLUMAGE.

TO GET THOSE HARDER-TO-REACH
FEATHERS, ONE NEEDS THE HELP OF

A FRIEND.

THESE BIRDS USE THEIR LONG BEAKS
WITH REMARKABLE SKILL.

THIS MUTUAL COOPERATION IS ALSO
SEEN AMONG SPECKLED MOUSEBIRDS.

THEY LIVE IN SMALL FAMILY
GROUPS, WHERE THE BIRDS ARE

PHYSICALLY VERY CLOSE TO EACH
OTHER.

THEY ALSO DISPLAY AN UNUSUAL
RITUAL.

THE BIRDS FEED EACH OTHER
WITHOUT ANY CONTEXT OF SEDUCTION

OR FEEDING OF CHICKS.

AS THE SUN RISES, BIRDS ARE
ALWAYS THE FIRST TO

BECOME ACTIVE.

THE MARABOU STORK LEAVES ITS
PERCH.

THE BLACKSMITH PLOVERS STRETCH
THEIR WINGS WITH A

WARMUP FLIGHT.

THIS FAMILY OF EGYPTIAN GEESE
HAS SPENT THE NIGHT TOGETHER.

IT'S TIME FOR THE CHICKS TO WAKE
UP AND LEAVE THE WARMTH OF THEIR

MOTHER'S FEATHERS, READY FOR
ANOTHER DAY IN THE WILD OF THE

AFRICAN SAVANNAH.

MORE THAN 2,000 SPECIES OF BIRDS
CALL AFRICA HOME.

BEAUTIFUL, UNIQUE, AND
INGENIOUS, THE FEATHERED FLYERS

OF AFRICA KEEP US LOOKING UP AND
OUR SPIRITS HIGH.

THANK YOU FOR COMING WITH US ON
TODAY'S JOURNEY INTO AFRICA.

I HOPE TO SEE YOU FOR THE NEXT
ONE ON "EARTH ODYSSEY".

[MUSIC]