She lays one egg, which is incubated by the male. This small, docile kiwi is unable to withstand predation by introduced pigs, stoats and cats, leading to its extinction on the mainland.

Feb 25, 2015 · The kiwi’s egg, in all likelihood, must be an adaptation it picked up as it evolved from a smaller flying bird to the stumpy-legged, chickenish weirdo of today.

May 22, 2025 · Discover the unique features, size, and fascinating facts about the kiwi bird egg, one of the largest eggs relative to body size in the bird world.

Feb 7, 2025 · According to the Guinness World Records, the southern brown kiwi lays the largest eggs relative to body size: “One female kiwi weighing 1.7kg laid an egg weighing 406g, which is almost …

Most bird eggs are 35-40% yolk, but the kiwi’s egg is 65% yolk. The nutritious yolk produces kiwi chicks that hatch fully feathered and independent, and is so enormous that it continues to sustain them for …

Aug 29, 2025 · Kiwi eggs are exceptionally large, holding the record for the largest egg-to-body ratio among all bird species. An egg can represent a substantial portion of the female’s body weight, …

Feb 9, 2024 · The kiwi is a flightless bird native to New Zealand. It is about the size of a domestic chicken, with brown feathers and a long, thin bill. Despite its small stature, the kiwi lays one of the …

Jul 13, 2023 · Kiwi eggs are very large in comparison to other birds, with an average weight of around 450-500g (16 – 17.5 oz). They are also high in yolk content, which makes them a valuable source of …

Jun 23, 2025 · The kiwi (Apteryx spp.), a flightless bird native to New Zealand, holds the undisputed title for laying the largest egg relative to its body size among all birds and possibly all animals.

The kiwi bird is amazing in more ways than one. They’re flightless, endemic to New Zealand and lay some fantastically enormous eggs! 🥚 But why are kiwi bird eggs so big?