The megageese are a family of large flightless birds descended from modern Branta geese. The largest species are among the largest birds to ever exist. Like their ancestors, the megageese are found in northern latitudes and occupy a niche similar to hippopotamuses or moose; they feed almost exclusively on aquatic vegetation found in the bogs, rivers, lakes, and other bodies of water in the northern parts of the palearctic and nearctic ecological zones. They are unusual in that they occupy a niche reserved typically for mammals; further south there are deer and suids that occupy a similar niche but in warmer climates. The social system for most species consists of a male with a harem of females. Thus, they are highly sexually dimorphic and many species have developed modifications on their beaks for male-male combats like tusks and bosses. Due to their size and behavior, megageese don't have many predators, but carnivores will prey upon young and injured megageese. Opportunists will also steal and eat megageese eggs.
From left to right:
Megagoose: Largest and most common species of megageese. Found throughout modern-day Canada, the bellowing honks of this bird during the mating season can be heard for miles.
Tusked megagoose: Slightly smaller than its North American cousin, this bird lives in northern Europe and northwestern Asia. Its lengthy tusks are used by males in competition over mating rights.
Dwarf megagoose: One of the smallest species of megageese, the dwarf megagoose is a product of insular dwarfism. Somehow its ancestors managed to get stranded on north Atlantic isles formed by the tectonic expansion in the mid-Atlantic.
Anatomically modern human and Canada goose for scale.
Love the concept!
Geese are mean enough as is, don't give them a size boost! That'll only increase their boldness!
Impressive! I would love to use one of these Megageese as mount.
Love the concept and the art!
These are fantastic ideas and art!
Are these for a project or are they a stand alone thing?
Really cool. Nice ideas.
Really nice concepts!
Do the females hatch the eggs by sitting on them?
Yes. The eggs are quite large with thick shells. That along with the way the nests are constructed, prevents crushing under the weight of the mother.
Are you sure large eggs are practical? As the chicks then need a longer time to hatch and the warmer seasons of the year are quite short. Also the nest needs a lot of construction, and big animals need to feed a lot.
With respect to body size, larger animals have lower metabolisms and require proportionally less food than smaller animals. So it does not necessitate as much time for feeding. Breeding, construction of nests, and incubating will occur during colder months when the adults are actually living partially off of energy stores, perhaps fat (the winters are actually shorter as at this time the climate is significantly warmer globally). Much of the nest will consist of compacted mud and dirt, as well as vegetable matter.
Compared to body size they indeed need less food, yes. But as a whole a large animal does need more than a small animal. And I suppose they probably lay a small number or perhaps a single egg per season, in a fashion such as penguins? Also, do they nest in colonies or further apart?
Well actually as far as the incubation, perhaps it could work as it does with crocodiles and alligators. I am a little uncertain about it.
There's always the megapode method.
Or females could tuck the eggs under their wings rather than sitting on them.
I would say a single egg. And they would nest in clusters. Depends on the number of females in an individual male's harem.
They're magnificent!I'd sure want to know more about this project!
These are brilliant! I hope you continue to make more future creatures like this!