Advice

Description and habitats of toadstool duck, wildlife behavior and diet

Description and habitats of toadstool duck, wildlife behavior and diet



We are searching data for your request:

Forums and discussions:
Manuals and reference books:
Data from registers:
Wait the end of the search in all databases.
Upon completion, a link will appear to access the found materials.

The duck, nicknamed the toadstool, actually has nothing to do with the order of duck, except for the similarity in appearance and constant habitation on the water. This bird in the common people is called the eared, crested, and scientifically - the great grebe or crested grebe. Toadstool was nicknamed for almost inedible meat - you can eat it, but it has a pronounced repulsive fish aroma.

Description of toadstool

The European grebe, or crested grebe, is the largest individual from the toadstool family, belongs to waterfowl. Outwardly, this bird resembles a duck, but the grebe and the duck have nothing in common. Due to the special structure of bones (they are not as hollow as in other birds, and less filled with air), toadstools can not stay on the surface of the water, but almost or completely immersed in it.

Crested Grebe appearance:

  • a roll-shaped torso;
  • thin, long neck;
  • legs far back;
  • almost invisible tail;
  • flat claws;
  • short wings;
  • pointed straight beak.

A feature of the great toadstool is its legs - they are short but strong. They do not have membranes, like ducks, but there are wide blades on the sides of the fingers, with the help of which the bird quickly swims and dives perfectly. Three fingers are pointing forward and the fourth is pointing backward. During swimming, the legs are not under the body of the grebe, but behind, acting like a ship's propeller.

The toadstool has soft and dense plumage, feathers emerge from the skin almost at right angles. Outside the mating season, the male of the eared bird is difficult to distinguish from the female, both in size and in plumage - dark, gray colors prevail. In the mating season, tufts appear on the head and neck, the abdomen and neck are light in front, bright red feathers on the sides. A chestnut-red collar with a black border is visible on the neck. On the crown of the head there are 2 bunches of black feathers.

Expert opinion

Zarechny Maxim Valerievich

Agronomist with 12 years of experience. Our best summer cottage expert.

The toadstool is small in size - males weigh up to one and a half kilograms, females - 1-1.2 kilograms. In length they reach 50-70 centimeters.

Bird habitat

The crested grebe spends most of its time on the water. Due to the special structure of the legs (they are located behind, there are no membranes on them), the bird walks with difficulty, looks clumsy. Grebes rarely come ashore, mainly during the nesting period. They live in ponds and lakes.

Crested Grebe can be found on water bodies in any country of Eurasia. The bird does not like a cold climate, therefore it practically does not live in the northern regions. You cannot find the great toadstool in Australia and New Zealand, they still live in Africa, although in small numbers. In central Europe, Grebe can live even in artificial reservoirs (ponds of city parks).

Behavior in the wild

Toadstool is a daytime bird; it rarely moves at night and only when the moon is bright. Lives alone, creates a pair only during the nesting period. All day long he is on the water, he dives perfectly, throwing himself into the water with his straight neck, swims under water for long distances.

Expert opinion

Zarechny Maxim Valerievich

Agronomist with 12 years of experience. Our best summer cottage expert.

It flies well, but reluctantly, therefore, in case of danger, it is easier for it to dive under the water than to take off (for this the bird needs a long run). The voice of the crested grebe is loud, the bird is capable of making a variety of sounds.

The spring migration begins in March-April, when the reservoirs open. Grebes prefer nesting on lakes where there are areas of thickets and reeds, but there are also areas of open deep waters. If the reservoir is not large, Grebes nest in pairs. Large lakes can accommodate clusters of up to 50-100 pairs.

Diet

The main ration of the crested grebe is small fish, no more than 8 centimeters in length. Greater toadstool eats more fish than all other toadstool species.

In addition to small fish, it can eat:

  • diving beetles;
  • bugs;
  • crustaceans;
  • shellfish;
  • dragonflies;
  • water bugs;
  • freckles;
  • snails.

The main method of foraging for grebes is diving. They descend under water 2-3 times a minute, each time covering a distance of up to 25 meters. One of 4-5 attempts to catch fish ends successfully. When an adult grebe catches fish, the ducklings rush to it with a squeak and try to get hold of the food. Young animals are fed with tadpoles, small fish, insects.

A toadstool can spend hours on the surface of the water or, having submerged in it halfway, collect food from the water surface and catch insects on the fly.

Reproduction and mating season

Great Crested Grebes are known for their unusual mating games preceding nesting. From the outside, these games are similar to a dance - the birds swim towards each other, the plumage on the head is ruffled. Having met, the male and the female stand on the water, simultaneously dive and pick up algae particles from the bottom of the reservoir. They present them to each other in their beaks as gifts.

Both mating and nesting will take place on a makeshift raft of reeds and dried algae. But for mating, last year's raft is used, and for hatching the chicks, the couple jointly builds a new one. Eggs are usually laid at the end of May. The female lays 3-7 white eggs, but over time they acquire a brownish-green tint.

In a nest about 50 centimeters high, the eggs are kept warm, despite the fact that under the weight of the crested Grebe's body it is immersed in water. Both parents incubate. After 24-30 days, chicks hatch, already covered with down - the young have bright striped plumage. Chicks move to their parent's back and stay there for up to 1.5-2 months, until they learn how to get their own food on their own.

Natural enemies

The main enemies that threaten toadstools, mainly during the mating season and during incubation of eggs, are:

  • marsh harrier;
  • gray magpie;
  • magpie;
  • pike.

Birds can peck at a clutch of eggs, and pikes are happy to feast on young ducklings who are just learning to go down into the water. A toadstool can die in a fishing net if it gets entangled in it when it dives too deeply for food. Nests are threatened by abrupt weather changes when strong waves rise and the water level in the reservoir rises.

Population and status of the species

Great crested Grebes belong to the toadstool species - a family of waterfowl. In total, there are 22 species in the population, 3 of which have already become extinct. Grebe is the most common grebe found in Europe. Grebes are not related to any species of bird. Initially, it was believed that they belong to the loon family due to external similarities and habits, later the theory was questioned. In 2003, the theory was voiced that toadstools are close relatives of flamingos.

In spite of the fact that many representatives of the Greater Grebe die during the hunting seasons (they shoot it along with the duck), under unfavorable climatic conditions, the population does not decline. Over the past decades, there has been an increase in the number due to the fact that the networks of fish farms and other artificial reservoirs are significantly expanding.


Watch the video: Guess what visited my feeding station for the first time today?! (August 2022).