Every winter, the birds fly south. One winter, a hell-diver (also called a grebe) told all of the other birds that he would stay for the winter to take care of two of his friends who had been injured and couldn’t fly south. Both of his friends, a whooping crane and mallard duck, had broken […]
Category: Podicipediformes
Colonial and associated with coot (fulica atra) nesting in great crested grebe (podiceps cristatus), comparison of three lakes
Great Crested Grebe (Podiceps cristatus) Science Article 5 abstract Nesting of the Great Crested Grebe in loose colonies and in close association with the Coot was investigated in Lakes Meteliai and Obelija in 1983-?1986 and 1999 and in Lake paltytis in 1984-?1986. Particular lakes and years were considered as integrators of between-lake and between-year differences […]
Red-necked grebes become semicolonial when prime nesting substrate is available
Red-necked Grebe (Podiceps grisegena) Science Article 1 abstract During 1995-1998 we studied the dynamics of nesting dispersion in a population of 160-200 Red-necked Grebes (Podiceps grisegena) on Lake Osakis, a large, windblown lake in central Minnesota. Breeding grebe pairs arriving on the lake were highly attracted to several large floating cattail (Typha angustifolia) mats that […]
Intruder pressure explains more of the variation in territory size than fish abundance for Red-necked Grebes (Podiceps grisegena) breeding on small boreal lakes
Red-necked Grebe (Podiceps grisegena) Science Article 2 abstract In the Red-necked Grebe (Podiceps grisegena), breeding pairs use both overt aggression and ritualistic behavior to defend territories for breeding and feeding. Examining the influence of factors determining territory size simultaneously continues to be stressed in studies of territorial systems. The behavior of grebes breeding on small […]
Gravel pits as new wetlands for the little grebe Tachybaptus ruficollis
Little Grebe (Tachybaptus ruficollis) Science Article 1 abstract ENVIRONMENTAL FACTORSGRAVEL PITSLITTLE GREBEMACROPHYTESSOUTHWEST FRANCEABSTRACT.-In southwest France, the increasing abundance of gravel pits has allowedseveral bird species to colonize the region. These wetlands have becomesubstitutes for the natural habitats of waterbirds. Little grebes Tachybaptus ruficollishave colonized southwest France since the availability of gravel pits expandedand began to […]
Gravel pits as new wetlands for the little grebe Tachybaptus ruficollis
Little Grebe (Tachybaptus ruficollis) Science Article 1 abstract ENVIRONMENTAL FACTORSGRAVEL PITSLITTLE GREBEMACROPHYTESSOUTHWEST FRANCEABSTRACT.-In southwest France, the increasing abundance of gravel pits has allowedseveral bird species to colonize the region. These wetlands have becomesubstitutes for the natural habitats of waterbirds. Little grebes Tachybaptus ruficollishave colonized southwest France since the availability of gravel pits expandedand began to […]
Breeding success of Great Crested Grebe Podiceps cristatus on fishponds
Great Crested Grebe (Podiceps cristatus) Science Article 1 abstract Between 1993 and 2000, breeding success of Great Crested Grebe Podiceps cristatus was monitored at two fishpond localities, Vrbje in central and Race in north-eastern Slovenia. During the study 50 and 23 nests with eggs were found, respectively. On average, 1.3 chicks per territorial pair survived […]
Ringing recoveries and the increase in numbers of European Great Crested Grebes Podiceps cristatus.
Great Crested Grebe (Podiceps cristatus) Science Article 3 abstract 221 recovery data of European Great Crested Grebes were analysed. Great Crested Grebes migrate SE to winter mainly in southern parts of the (former) Soviet Union or Turkey (Fennoscandian birds), or in the central European lakes (individuals from northwestern Europe). A second wintering area is found […]
Phenology habitat choice and reproduction of the Great Crested Grebe Podiceps cristatus on a fish-farm.
Great Crested Grebe (Podiceps cristatus) Science Article 2 abstract On a fish-farm in The Netherlands Great Crested Grebe breeding pairs arrived in two distinct periods. We suggest this pattern reflects differences in migratory behaviour, whereby late birds are migrants. In early arriving grebes clutch size decreased with an increasing pre-laying period, whereas in late grebes […]
Food intake of Great Crested Grebes Podiceps cristatus wintering on cold water as a function of various cost factors
Great Crested Grebe (Podiceps cristatus) Science Article 4 abstract Food intake rate during the nonbreeding season of Great Crested Grebes Podiceps cristatus was estimated by reconstructing the stomach content of drowned birds from recognizable remains of the fish prey. Food intake by individual birds since the ejection of the last pellet (the accumulated prey mass) […]