TYPES OF CRANE BIRDS :
1) Scientific name for the Eurasian (Common) Crane is Grus grus
Size of body: 120–130 cm
Population: more than 700,000
Breeding distribution: Turkey & Caucasus (ssp. archibaldi), northern Eurasia (Western & Northern Europe, European Russia, Western and Central Siberia;ssp.grus).
Distribution of winter: Iberian Peninsula, China, Eastern Africa (primarily Ethiopia), France, Germany, northern Africa, Turkey, Southwest Asia, Indian Subcontinent
Two subspecies: Grus and Archibaldi
Threat classification (IUCN): least serious
2) Grus canadensis is the scientific name for the Sandhill Crane.
Population: more than 800,000
Distribution of breeding: arctic and subarctic Mid-continental NW of No America, East Siberia (ssp. canadensis) Southeast Asia, southern Georgia and Florida (USA); North Americ (ssp. tabida), and Pulla (ssp. Mississippi), Nesbite
Distribution of winter: Indian Subcontinent, Ethiopia, Sudan, Lake Chad
There are five subspecies: Nesiotes, Pulla, Pratensis, Tabida, and Canadensis.
Threat classification (IUCN): least serious
3) Scientific name: Anthropoides virgo; Demoiselle Crane
Size of body: 90–100 cm; size of population: 170,000–220,000
Distribution: Central and East Asia, southern Russia, Ukraine, and Northwest Africa (extinct?).
Distribution of winter: Indian Subcontinent, Ethiopia, Sudan, Lake Chad
Subspecies: not present
Threat classification (IUCN): least serious
LIFE SPAN OF CRANES :
Twenty to thirty years in the wild, and as long as eighty years in captivity.
WHAT DOES CRANES EATS :
The cranes eat a variety of foods, including both plant and animal stuff. They eat seeds, leaves, nuts, acorns, berries, fruit, insects, worms, snails, small reptiles, mammals, and birds when they are on land.
BREEDING :
Breeding year-round monogamy, cranes form lifelong pair relationships that could extend to the birds' lifespans. Before there is a successful breeding season for a few years, pair bonds start to form in the second or third year of life. Newer pair bonds disintegrate (divorce) frequently following unsuccessful breeding attempts, which are not always successful in breeding. Relentless progenitors stick together as long as they can successfully reproduce.* [5] Seven out of the 22 pairs that were observed in an 11-year study of sandhill cranes in Florida remained together. Divorce accounted for 18% of the pairs' separation, while the death of one partner caused 53% of the pairs to split up Cranes reproduce seasonally and are territorial animals. Seasonality varies among species and among species based on environmental factors. When migratory species arrive to their summer breeding sites, which is usually around April or May, they start to reproduce. For most tropical species, the monsoon or rainy seasons fall during the breeding season.[2] Few tropical species are able to conduct sporadic aseasonal nesting throughout the year because to artificial water sources like irrigation canals and erratic rainfall that can occasionally supply enough moisture to sustain wetland habitat outside of the typical wet season. The size of a territory varies according to its location. Tropical animals can live on relatively tiny areas. For instance, sarus cranes in India can breed on areas as small as one hectare as long as the land is of enough quality and there is little to no human interference.[Reference required] When agricultural crops and terrain conditions are right, species like the Sarus Crane may sustain territory as tiny as 5 hectares, even in highly populated areas without intentional persecution.[2] Red-crowned cranes, on the other hand, may need 500 hectares for their territory, and pairs may even defend thousands of hectares. Both birds defend their territory by calling in synchrony or, less frequently, by attacking one another physically, with the male typically carrying out the attacks.
Good information
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