Growth process after the success of the cuckoo chick coup. Hatching from eggs and killing brothers on day one. As the chick grows, major changes occur on days 6, 9, 12, 19, and 21.
The sad part is that there are signs that birds can recognize when a chick isn't theirs. They just never developed the instinct to care. Bird species that can fight against nest raids like this are few and far between.
What is interesting is that this behavior is not even learnt but purely instinct. The moment the cuckoo bird is born, its first action is to eliminate competition within the nest.
I was just thinking the same thing, it’s amazing, it’s genetically programmed parasite really!! Unreal... What’s amazing as well is the cuckoo chooses the most dumbest birds to lay their egg into their nest! Really, how dumb can the bird be not to recognize someone else’s gigantic egg right next to theirs and then the giant offspring that is 3 times larger then the others...
It's still interesting that although the baby cookoo never met its biological patents and there must have been some basic imprinting between the host parents and the baby developing parasitic cookoo it still knows how to behave as a 'normal' cookoo , identify with 'other' grown breeding cookoos and still know recognise for female birds at least potential new future hosts from a very different species.
@@aimanazminovich3602 I don't understand it. Why don't the other birds FIGHT BACK??? Scratch, punch, claw, yell, do ANYTHING. Don't just sit there and take it. FIGHT!!!
@@costco_pizza cuz they act with instinct, the parents only think of it as an offspring and pull their strength into raising it, the other chicks are, well, too small and weak, cuckoo grows very fast and outgrow others just for that reason, kill the other chicks to get all the attention
@@costco_pizzaThey're merely newborns, they don't even realize what is going on as the cuckoo pushes them out of the nest, they can literally do nothing besides begging for food, how do you expect them to fight back?
@@Diana-bw6seВ отличие от чиновников, от кукушек хоть польза есть. Они гусениц едят ядовитых, которых ни одна другая птица есть не станет. Не будь кукушек, лес мог бы погибнуть от нашествия паразитов. В том числе пострадали бы и разные мелкие птицы.
Everyone here need to realise the cuckoo isn't their baby,the cuckoo is a parasitic bird who lays it's egg in another bird's nest then their eggs hatch first and kill the original chicks and take over and repeat that cycle
Nature or not this bird has to be looked over as a pest more than anything else. Damn thing going to endanger all other birds and it’s going to survive over the rest!
“Little birds are so beautiful. So tranquil compared to birds of prey:)” Baby cuckoo: so anyway I successfully infiltrated and disposed the other children
@@rationalmind3785 Strangely, when the birds are not at the time when they leave their nests, when they come out of their nests, the parent birds abandon them. Perhaps because focusing on the remaining chicks in the nest is beneficial to survival.
@@rationalmind3785 It is a mistake to think that birds see the color that humans see. Birds usually see ultraviolet, infrared areas. Only a few colors are recognized in the visible light area. The size is distinguishable, but ... The volume of the whole egg is detected by the belly of a female bird.
another reminder to myself that "birds are dumb." didn't even notice NOR look for the fallen babies which were no doubt screaming as they fell out of the nest.
Only some birds have the capability to recognize a parasite egg and then they stab it with their beaks to pick up and remove it. Others like redstarts, reed warblers, greattits, etc are too driven by instinct to sit on eggs, and take care of whatever hatches out of it. Also, birds basically do not seem to care whatsoever about what happens outside of the nest cup. A blue tit mother, like in the popular video on RU-vid, will sit and watch its cold struggling baby outside of the nest for hours and do nothing. It's not in the nest cup, so she doesn't care or even think that she needs to care. Also is why babies in nest boxes who jump out of the nest cup too early get very little food, they'll prioritize the babies who are still in the nest cup. They seem dumb, but it's all just instincts really.
@@akliang2610 Sadly, that may not help. Studies were done where the egg of a cuckoo was removed from a bird's nest and not long after, the cuckoo parents attacked the host bird for it. They call it the "cuckoo mafia theory". Yes, really.
Although to watch those poor babies being tossed out of their nest was so sad….it was the parents trying so hard to fed the villain cuckoo that brought a tear or two! Magnificent film showing from the start to the bitter end! Unfortunately now for me,my awe of the cuckoo’s and their lovely song…well it’s not in my book of favourites anymore!
I've read on Wikipedia (yea I know, not a reliable source, idc) that when an egg in the host parents nest mama cuckoo with takes one of the original eggs with her or eats it
💥💥Brother, don't worship a stone. You make a stone with your hand, don't worship this trap by God, don't worship idols. A tree worships a trap that worships a trap rat that worships the stone of the cow's fetish of each trap. God doesn't forgive shirk by God. There is no God but God alone, not a partner. The last messenger of Muhammad. Go back to Islam before death. Think more.👍..
I've seen some cuckoo videos before, I think this is the most informative and well done. It had info none of the ones I've seen, like the poo,I never even saw that bit in other videos. I wonder if there's any instance where the cuckoo didn't eliminate other babies and was raised with the babies. I doubt it, it gets too big for the nest for itself. One thought goes through my mind "Please let the person recording or somebody find the babies dropped out of the nest and raise them while they get their documentary" save the babies lol. It breaks my ❤ watching those babies drop
I’ve seen a video where a cuckoo baby and another baby lived in the nest together. It was a man made square box next you see in peoples yards and they had a camera inside. The 2 babies seemed to coexist fine despite their size difference
Asian Koel (which is commonly parasitic on Indian house crow) hatchlings don't push out eggs or their "siblings". Interestingly, the culture disgust for cuckoo in the west is absent in Indo-Malaya - it often features in poetry and is a symbol of unrequited love in some cultures here. Then again, _Corvus splendens_ and the Asian Koel look pretty similar, barring the Koel's red eyes and completely black head (in contrast to the crow's black eyes and grey head).
💥💥Brother, don't worship a stone. You make a stone with your hand, don't worship this trap by God, don't worship idols. A tree worships a trap that worships a trap rat that worships the stone of the cow's fetish of each trap. God doesn't forgive shirk by God. There is no God but God alone, not a partner. The last messenger of Muhammad. Go back to Islam before death. Think more.👍ن
