Thanks for the high definition video! I have watched lots of bad baby cuckoo birds done this kind of murdering thing.😤 Still surprised how it be placed in their DNA! 😈 And why the adopted mom didn't react to it?!😓

Should find a dozen of those cuckoo eggs and put them all together in a single nest and film the battle Royale.

"Brother, please! Help me!" Cuckoo chick: "Long live the king."

I used to tell myself that "Every animal, no matter how vicious, was a baby once." Turns out some animals are little bastards the moment they come into being.

People: Humans are the only evil beings in this world Cuckoo bird: Hold my beer

That last baby was a real fighter till the end

Never have I wanted to punch a bird so bad

"accumulate power" i love the wording on this

That’s so fascinating how they automatically know what to do once they emerge from their egg.

The other baby's look all cute the cuckoo bird looks like a giant Frankenstein

And they say that... "No one is born a killer..." Yeah, right!

生まれてすぐこんなことができるなんてホラー映画より不気味な現実！とても勉強になる動画でした。

こんな事をしてもカッコウの雛を育てる宿主が絶滅せずに、自然のサイクルを現在まで維持できているのはすごい事だ。

Baby bird: Come on bro. Stop pushing me! Cuckoo: I was never your bro.

That last baby fought so hard 😭

“Nature is wise and not evil” Nature:

It’s cruel but isn’t it incredible how the cuckoo chick has an innate ability to do what it does?

I never believed that one day I could hate a bird! 😱

託卵されたほうも逆にカッコウの卵を落としたりして防いだりすることもあるから自然界は妙にバランスが取れている。 いい動画でした。ありがとう

Other birds comes back and ask, hey Cuckoo why are you alone 😂😂😂😂

Born to play among us, real pro gamer move right there

Now I need to watch some videos of eagles killing cuckoo birds...

It was soooooo sad to watch how the last baby was fighting for his life before he falls down. 😢

That would be a big twist if the parasite bird layed a egg in a Owl nest an the mother returned when it was laying 😄

Brood parasitism has always fascinated me, especially obligatory brood parasites, I wonder if the babies of the host species will ever evolve a defense

何が怖いって産まれながらその習性を身につけていること...誰に習わずとも

This video really triggered me on a deeper level in a way I didn’t expect.

I'm ready for a cuckoo to get pushed out

Don't worry, we humans are sometimes much worse than cuckoos and what's worse we do it consciously

"eat pray and accumulate power" this is how I'm going to describe all forms of feeding from now on.

marvelous how they're somehow genetically predisposed to do this right after being born

Este fantastic ce putere are acest pui de cuc care a eliberat cuibul de oua si puii pasarii gazda el ramanand singurul supravietuitor si cum pasarica ii aduce mancare si l creste ca pe copilul ei Este uimitoare natura cu toate tainele ei😢❤❤❤3

Those poor babies. The last chick that fought hardest, rip.

Man I was really rooting for the lil dudes

Oww,, poor babies. I was literally crying to watch them falling down.🥺😭

Has anyone done an experiment on how if an Iron Ball the size of an Egg is combined with a Cookoo Bird, will the Iron Ball also be ejected from the nest?

I always thought that as it got bigger it would accidentally crush or push out other chick's. I had no idea it was intentional.

That poor baby bird was fighting for his life against that devil bird... 😭

The last one fought so hard

Hahahaha, at 0:59 "Baby cuckoo eat prey and accumulate power"

How it looks like some human politics

My 3-years old son cried 😭. This was his first thriller.

this devil bird should replace chicken and be served as meals.

Now I know why there's so many baby chicks found on ground when I walk around !!

Спасибо за видео, очень интересно и познавательно!

“Baby cuckoo eat prey and accumulate power” Idk why but I find this statement hilarious

"No one is born a killer" Yea, right...

生まれて少ししか経たずにこれやるの凄いな

Wild how they evolved to do this. Just some unaware little meat machine shoveling like mad out of instinct.

The baddest bird i'd ever knew, how i imagine to roast it

Every time I see cuckoo chicks I remember my childhood science teacher. She volunteers for a wildlife center an had just got a rescue cuckoo chick found on the ground after a windstorm. It was an awesome month for us to watch him grow. It was only two days old an she showed us that if the chick feels anything in the nest but itself it would push it out. She put a little ball in the nest an within minutes it rotated, stuck it's wings out an backward and used it's naturally shovel shaped back to scoop it up an out. It was really freaky. She also told us if the Mom did notice the imposter an kick it out or leave it the mom cuckoo would attack the host bird viciously to kill it's chicks and would destroy any new nests. Cuckoo's are really devoted to being lazy, lol.

بسم الله الرحمن الرحيم " فتبارك الله أحسن الخالقين " صدق الله العلي العظيم ❤🎉

That little one fought harddddd

Like if you don’t really like cuckoo birds that much

The little monster has such an incredible skill, I still don’t understand how it does it 😂

Kinda funny to think, that against old tolds ravens and crows are remarkably good parents. They defend their youngsters even against bigger hawks and falcons. And additional ravens are bond for life with their partners. And than there're cuckoos..

البيت بيت ابونا ويجوا الغرب يطردونا... الكلمات تعجز عن الوصف سبحان الله ما خلقت هذا باطلا سبحانك

Вот гадкий какой! Уже инстинктом заложено! Еще себя не знает, а все ему мешают.....

人の家に子供捨てといて その家の子供捨てるなんて悪魔としか思えないw

there can be only one😏thats how it started the story of the Mcleod clan😅

Parrotbills are so cute.

落とされる時の雛の助けを求めてそうな顔が切ない

生きてても親の目の前でも雛や卵を落とすというのは見たことがなかったので非常に興味深い

Бедная птичка в недоумении...а этот противный гадёныш ещё из гнезда всех выкинет.

Is a good name for a movie CUCKOO THE SERIAL KILLER 🤣🤣🤣

This chick is more horrifying than anything I have ever seen in the Alien franchise.

Now if I see an egg that's a lot bigger than the others it's getting a swimming lesson

Bicycle of life 🍵

Ho.Ly.Sh... That's one of the most brutal things I've seen😬

they were all like screaming "dont push me out, I dont want to die...." RIP

Mummy Bird :"such beautiful children, I must provide for them " Baby cuckoo:"sorry siblings, but I prefer to be an only child " YEEET

I'm sorry why did I laugh I kept saying STOP THATS MY SISTER at this part: 3:42

At a young age, Koko baby realizes that these are not his siblings but why does the mother not know that KoKo Bird is not her child

Seems like the imposter ejected all the crewmates this round

親鳥が諦めて傍観してるのが悲しすぎる

О боже, так он не только яйца выкидывает, но и птенцов тоже

Nunca tinha visto uma malvadeza assim 😢

As a kid I used to find dead baby birds on the sidewalk near trees where nests were perched and always wondered why that happens. Interesting to see that in some instances it may have been because of a scenario like this. It's a bit unsettling seeing something so innocent as a newborn baby bird committing such a gruesome act as dropping other chicks and eggs to their death

6:25 Hello! -where are your siblings? -They went to cinema together

The cuckoos seem to- rather sparingly, all in all- thin other bird species.

(chicks dying) Filmmaker: 😀🎥

In human law this is the equivalent of an adopted kid killing the legitimate kids.

now this is what I call "killer instincts".

The competition for survival But in the end we will all perish, just the difference in time

Never thought I’d be cool with a specific species of bird going extinct, but here we are. I gotta go give my parakeets a hug. Or rubs. You know what, I’ll stick with treats.

そしてこの後カッコウのヒナは鷹に持っていかれる……なんて事もある 自然界きびしぃ

I saw a video of a robin destroying a cuckoo egg. The comments mentioned that they can recognize colors

It behaves like my ex. Wanting everything to herself 🤣

Cuckoo's chick is a true gangster at the first stage

It doesn't help that the baby cuckoo looks like 15 times uglier than the other baby birds

真是好恐怖的天性，這樣才是真真正正的「贏在起跑線」😅

Килир, у кукушки сынишка!

カッコウの托卵やヒナが宿主の卵やヒナを落とすのはカッコウの本能。 それを見て戦慄したり嫌悪感を抱くのは人間の本能ですね。

カッコウのヒナの口は親鳥の給餌本能を刺激して、通りかかったよその鳥まで思わす餌を与えてしまうそうです。

It's so intense knowing it does that right from being born sinister

Nature is so brutal sometimes, but it is the way it is. Pretty amazing survival technique by the cuckoo, even if it's not appreciated. Thanks for sharing.

Congratulations, Life! You made me cry again

We can learn many things from these video how to Love each other. 💓

Hooray For The Cuckoo Bird Now He Doesn't Have To Share Any Food With Anyone..🎉

Mama bird: "Hello 911...my stepson is a murderer".... operator 911 bird: "Let me guess,he's a Cuckoo"