Ensam häger
Gråhäger (Ardea cinerea), tidigare kallad enbart häger, tillhör familjen hägrar inom ordningen pelikanfåglar. Den är vida spridd i Europa, Asien och Afrika och ofta den i norra Europa enda förekommande hägerarten. The pair bond appears to last a single season only. It also performs Upright displays with plumes erected, a bill-down version of the Stretch display, and the Twig-shake display. Fågel som liknar häger
Gråhäger ur samlingarna. Foto: Staffan Waerndt. Häger är stor, cirka 1 meter hög med en vingbredd av 1,4–1,75 meter. Den är grå ovan och vit under, halsen, benen och den grova näbben är långa, och den har långa, svarta, hängande huvudtofsar. I flykten håller den halsen indragen. These are crucial findings showing the well-being of local heron populations are often tied to their interactions with fish farms. At very high prey density, success plateaus out but the energy spent foraging decreases. PMID Häger unge
Generally quite common and conspicuous in wetland habitats from marshes and tidal flats to small ponds, ditches, and wet fields; nests colonially in tall trees. Mainly seen as singles or in small groups, standing quietly in or at the edge of water, less often hunting in fields. Plumage mostly gray overall, with paler neck; adult has white crown, black eyebrows, and black shoulder patch. Like. They are then swallowed or have hunks of flesh torn off. It also swallows a good deal of vegetable matter and even other foreign material Hill , but it is unclear if this is functional.
Häger ägg
Gråhäger © Steve Dahlfors. Latinskt namn: Ardea cinerea - vilket betyder, askgrå häger. Typiska kännetecken: 84 – cm. Vingbredd – cm. I huvudsak grå på ovansidan och vit eller ljusgrå på undersidan. Flyger med kupade vingar, och framifrån syns då vita fläckar på vingknogarna. Grey Herons generally do not breed until after the second year, although some frequent colonies as young yearlings. The courtship of the Grey Heron has been intensively studied Witherby et al. Adults have a white head and neck with a broad black supercilium that terminates in the slender, dangling crest, and bluish-black streaks on the front of the neck.
Häger läte
IOC Classification: Domain: Eukaryota • Regnum: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Infraphylum: Gnathostomata • Superclassis: Tetrapoda • Classis: Aves • Superordo: Neognathae • Ordo: Pelecaniformes • Familia: Ardeidae • Subfamilia: Ardeinae • Genus: Ardea • Species: Ardea cinerea Linnaeus, For a long-lived bird demographically dependent on adult survival, it would be hard to make an argument that herons should be a huntable species for either cultural or food purposes. A Greeting Display includes bill-snaps. 
Häger flyger
Grundfakta om Gråhäger: livslängd, utbredning och karta över livsmiljö, livsstil och socialt beteende, parningsvanor, kost och näring, befolkningsstorlek och status. The third subspecies represents an isolated island form, a taxonomic distinction with analogies in other herons. A clutch of usually three to five bluish-green eggs is laid. More typical Grey Herons nest in nearby Senegal, and an individual in Senegal was reported as showing intermediate features between cinerea and monicae Baillon , Dowsett and Dowsett-Lemaire Häger fridlyst
The Grey Heron (Ardea cinerea), called Gråhäger in Skåne, is a long-legged predatory wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia and also parts of Africa. It is resident in much of its range, but some populations from the more northern parts migrate southwards in autumn. Irises are yellow, bill grey, and legs green-grey. PMID Häger övervintrar
Ardea cinerea (Linnaeus, ) H. GREHE Family: Pelecaniformes > Ardeidae. The Grey Heron is a distinctive species with grey, black, and white plumage. It is often seen along rivers or lake margins, or standing in flooded fields. In flight their large size, impressive wingspan, long legs, and folded neck give them an unmistakable silhouette. Herons feeding alone defend their feeding territories. The third subspecies represents an isolated island form, a taxonomic distinction with analogies in other herons.