Least Bittern (Ixobrychus exilis) Science Article 4 abstract Evidence for a partial prenuptial moult in the Little Bittern Ixobrychus minutus is reported for the firsttime, and is based on both live and museum specimens. The prenuptial moult, which is probablyundertaken in the African winter quarters shortly before the spring migration, involves body feathersand often some […]

Grey Heron (Ardea cinerea) Science Article 2 abstract The copulatory behaviour of Grey Heron Ardea cinerea was observed in a colony in Donana (SW Spain) during two years. A total of 262 pair copulation attempts (PCAs) and 39 extra-pair copulation attempts (EPCAs) (12.9% of all copulation attempts) were observed among 31 focal pairs. 84% of […]

Grey Heron (Ardea cinerea) Science Article 1 abstract The aim of this study was to estimate the importance of factors a.ecting the breeding success of the grey heron (Ardea cinerea) in three colonies in the northern Poland (Mosty and Ryback), differentiated in population size, habitat type and feeding areas used by birds. The highest mean […]

Green Heron (Butorides virescens) Science Article 3 abstract The ‘pumping’ of the Bittern and the ‘cooing’ of the Least Bittern may be classedu nder the head of song,b ut for the Herons as a group there seems to be singularly little recorded in the way of a coUrtShip song CHARLES W. TOWNSEND, The AUK, Vol. […]

Green Heron (Butorides virescens) Science Article 2 abstract Avian surveys were conducted 21-23 May 1974 in a series of three kettle holes onthe Montague Plain, iu Franklin County, near Greenfield, Massachusetts. Pitchpine (Pinus rigida) dominated the bases and sides of the kettle holes. Ponds,surrounded by a dense growth of meadow-sweet (Spiraea latifolia) and S. tomentosa),were […]

Green Heron (Butorides virescens) Science Article 1 abstract This report has to do with some observations made in a Green Heron colony during the seasons of 1921 and 1922. The colony was located in a willow marsh near the north shore of the eastern section of the dam at Lakeview, Kansas. BESSIE PRICE REED, The […]

Great Blue Heron (Ardea herodias) Science Article 1 abstract Seventeen Great Blue Heronries were surveyed in nine counties of northeast Ohio during the1993 breeding season to determine nest site characteristics. Herons nested in 15 species of deciduoustrees, selecting the taller trees at each site. Crown integrity was not a requisite for tree usage; repaired(reoccupied) nests […]

Great Blue Heron (Ardea herodias) Science Article 10 abstract Great Blue Herons (Ardea herodias)typically prey upon fish and other aquatic organisms,and they occasionally take small mammals and birds.We observed a Great Blue Heron attack, kill, and attemptto consume an Eared Grebe (Podiceps nigricollis).The heron was unable to swallow the grebe, andit abandoned the carcass after […]

Great Blue Heron (Ardea herodias) Science Article 11 abstract The parasitic roundworm, Eustrongylides ignotus [agersk , has been known to cause mortalit y and morbidity in members of the heron family in the eastern states of North America. To date no previous records exist for this nematode in Wisconsin. D . M . Swinefordi, Patuxent […]

Great Blue Heron (Ardea herodias) Science Article 8 abstract Heron hepatitis B viruses (HHBVs) in three subspecies of free-living great blue herons(Ardea herodias) from Florida, USA, were identified and characterized. Eight of 13 sampleswere positive in all assays used, whereas sera from egrets, which are also members of the familyArdeidae, were negative in the same […]