The return of the endangered bird, a tern in the family Laridae
, to Matsu for four consecutive years means the bird has a regular migratory path and has grown a sense of affinity with the environment on the islands, researchers at National Taiwan University said.
Redescription of Cosmocephalus obvelatus (Creplin, 1825) (Nematoda: Acuarioidea) of Larus delawarensis ORD (Laridae
En el Peru existen 16 generos, 29 especies y 29 subespecies de la familia Laridae
However, in the study of eiders (genus Somateria), the females were observed to usurp the nests of gulls (Laridae
family) but sometimes did not continue their occupation of the gull's nest, which may be considered as incomplete nest usurpation (Perry, 1982).
Censo de aves migratorias (Charadriidae, Scolopacidae e Laridae
) na Coroa do Aviao, Igarassu, Pernambuco, Brasil.
Reported bird species, winter population size estimates, number of carcasses, and rRT-PCR test results per incident during outbreak of HPAI A(H5N8) virus, the Netherlands, November 2016-January 2017 * Maximum estimated Avian family and species (common name) winter population, x1,000 ([dagger]) Anatidae (waterbirds) Anas penelope (Eurasian wigeon) 680-920 Aythya fuliqula (tufted duck) 190-230 Unidentified waterfowl Podicipedidae (grebes) Ardeidae (herons) ([section]) Phalacrocoracidae (comorants) Rallidae (rallids) Scolopacidae (shorebirds) ([paragraph]) Laridae
(gulls) Larus marinus (great black-backed gull) 7.4-13 Accipitridae (hawks) Falconidae (falcons) Falco pereqrinus (peregrine falcon) 0.36-0.52 Corvidae (corvids) Aves indet.
Discriminant functions are especially effective in the case of gulls (Laridae
), allowing correct sexing from 90 to 100 % of individuals from different species (Mawhinney & Diamond 1999, Chochi et al.
Notes on the birds of Central Oaxaca, Part 1: Podicipedidae to Laridae
. Huitzil, 3, 1-10.
Slow rate of evolution in the mitochondrial control region of gulls (Aves: Laridae
Two factors have been exposed to explain this rapid demographic explosion of Laridae
colonies: on the one hand, human activities like fish remains of trawlers and household garbage, and protected measures to nesting sites [4, 7, 28, 33, 10].
Aerial predators including Peregrine Falcons (Falco peregrinus), Cooper's Hawks (Accipiter coopmi), American Crows (Corvus brachyrhynchos), and gulls (family Laridae
) were observed during the BCNH breeding season.
(jaeger) 1 3.03 0 0.00 Larus hyperboreus (Glaucous Gull) 0 0.00 0 0.00 Laridae
(gull) 2 6.06 0 0.00 Sterna paradisaea (Arctic Tern) 0 0.00 0 0.00 Plectrophenax nivalis' (Snow 0 0 Bunting) Small bird 1 0 Small-medium bird 7 18 Medium bird 6 0 Medium-large bird 28 13 Large bird 9 0 Aves 104 1 Aves (Bird) Total 188 7.34 37 3.52 Cricetidae1 (voles/lemmings/mice) 12 0 Canis lupus (dog/wolf) 0 0.00 0 0.00 Vulpes spp.