Name:Barred Cuckoo-dove
Alias:Pied coffee chase,Macropygia unchall,Barred Cuckoo-dove
Outline:Landfowl
Family:Dovetail D.family C.Dovetail
length:32.4-41cm
Weight:160-230g
Life:No textual research information is available
IUCN:LC
Barred Cuckoo-dove has three subspecies.
Cuckoo doves are resident birds, partially wandering. Usually in pairs, occasionally alone, rarely in groups. Land with your tail up. Action is calm, not afraid of people, do not fly away immediately after seeing people, always stay and look at each other for a moment before taking off. It was a low, "coo-um-coo-um" sound. It mainly eats banyan fruit and other plant berries, seeds, grass seeds, and sometimes eats rice and other crops.
The breeding period is from May to August. They nest in pairs in dense forests and sometimes in bamboo groves, usually on branches or bamboo branches. The nest is very simple, mainly made of dead branches and grass. Each clutch lays 1 eggs, occasionally 2 eggs. The size of the egg is 30-38 mm x 20-28 mm.
During the incubation period, pigeon milk is secreted under the action of prolactin (also known as prolactin) secreted by the posterior pituitary gland. Pigeon milk is composed of fat particles, emulsified chylous fluid and lymph fluid exfoliated from the swollen flat epithelium in the lymphatic area of the bilateral side sac of female and male pigeons, that is, the crop bed lymph area. After colostrum stage, chylous fluid rich in emulsified fat particles is gradually added. In general, on the 4th to 5th day of incubation, the male and female pigeons' crop beds began to sprouted, and the blood vessels of the crop beds were congested, thickened, and lymphatic vessels hyperplasia. On the 8th to 9th day, the crop epithelium thickened and entered the pre-brooding state. On the 13th day, the thickness and width of the pigeon had doubled, transparent yellowish milk could be secreted on the 14th to 16th day, the crop could secrete the throat milk on the 18th day, but on the 7th day after the squabs emerged from the shell, the secretion of the crop milk began to decrease, and on the 10th day, the secretion stopped, and the squabs continued to retching until about 2 weeks of age, the crop bed began to shrink, and the milk secretion gradually ceased. The chymous pulp is gradually mixed into the semi-finished chymous pulp which is backflowed from the glandular stomach and ground through the muscle stomach, and then it is changed into the granule feed which is directly fed with water. If the hatched eggs fail to shell on time, the broody pigeons can continue to hatch until the 22nd to 24th day at most (these are related to the broody nature of the pigeons, the incubation season and the feedback of embryonic development information, the frequency of breaking the shell of the chicks, etc., such as in the cold winter and spring and the brooding period, the incubation period is often automatically extended, and it is often difficult to adhere to in the hot and hot days). At this time, the brood will automatically stop brooding with the shrinkage of the crop bed.
Listed on the International Union for Conservation of Nature (IUCN) 2013 Red List of Threatened Species ver3.1 - Not Threatened (LC).
It is listed in the second level of the List of China's National Key Protected Wildlife.
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