Egyptian goose

Description

The Egyptian goose is mainly brown and the adults have chestnut patches around the eyes and on the lower part of the breast. They have long legs and an erect bearing; when in flight they show their white coverts on their wings, similar to those of shelducks. 

Ethology

Their intimidating behaviour toward other smaller species is notable, as is their aggressive behaviour towards members of their own species. The female chooses the most aggressive male as her mate, which means that there are lots of fights during the mating season. They nest on the ground or in tree hollows, even taking advantage of nests abandoned by other birds. The females lay 5-10 white eggs that will incubate for 28-30 days. 

Interesting facts

It is a widely extended species and relatively common in Africa. In some of the areas it inhabits, it is considered a pest for farmers, which is why it is sometimes poisoned or hunted for sport. It has expanded to certain areas of Europe, where it is considered an invasive species, as it competes with other autochthonous birds for territory and food.