Tree Sparrow (Passer montanus) Science Article 5 abstract While many farmland bird species are declining in Western Europe, the Finnish Tree Sparrow Passer montanus population has increased significantly during recent decades. During 1984-2002, we studied the population changes, colonization characteristics and nest sites of theTree Sparrowin a large area of agricultural landscapewithin southern Finland. The […]
Category: Passeriformes
Tree Sparrow Passer montanus freezing in the presence of a Sparrowhawk Accipiter nisus
Tree Sparrow (Passer montanus) Science Article 3 abstract [..] A striking example of freezing behaviour in Tree Sparrows Passer montanus was observed at Tovetorp Zoological Research Station in south-eastern Sweden on 28 February 2002. I observed a Sparrowhawk Accipiter nisus launching an attack, at 14.45 in the afternoon, towards a feeding station located underneath a […]
Habitat use by breeding Tree Sparrows Passer montanus
Tree Sparrow (Passer montanus) Science Article 6 abstract Tree Sparrows Passer montanus showed a strong preference for nest-sites adjacent to wetland habitats, and avoidance of sites on intensively managed mixed farmland distant from Rutland Water. A variety of wetland edge habitats were frequently used by foraging adult birds when provisioning nestlings, and invertebrate prey of […]
Magnetic cues and time of season affect fueldeposition in migratory thrush nightingales(Luscinia luscinia)
Thrush Nightingale (Luscinia luscinia) Science Article 2 abstract Bird migration requires high energy expenditure, and long-distance migrants accumulate fat for use asfuel during stopovers throughout their journey. Recent studies have shown that long-distance migratorybirds, besides accumulating fat for use as fuel, also show adaptive phenotypic flexibility in several organsduring migration. The migratory routes of many […]
Wingbeat frequency and the body drag anomaly: wind-tunnel observations on a thrush nightingale (Luscinia luscinia) and a teal (Anas crecca)
Thrush Nightingale (Luscinia luscinia) Science Article 1 abstract A teal (Anas crecca) and a thrush nightingale (Luscinia luscinia) were trained to fly in the Lund wind tunnel for periods of up to 3 and 16 h respectively. Both birds flew in steady flapping flight, with such regularity that their wingbeat frequencies could be determined by […]
Observations at a nest of Thrush-like Antpitta Myrmotheracampanisona in eastern Ecuador
Thrush-like Antpitta (Myrmothera campanisona) Science Article 1 abstract Thrush-like Antpitta Myrmothera campanisona is one of a species-pair in this genus belonging to the ground antbirds (Formicariidae). It is distributed from south-east Colombia, southern Venezuela and the Guianas to north-west Bolivia and Amazonian Brazil11. One race, signata, occurs in Ecuador10. Brief descriptions of nests from French […]
Influences of restock age and habitat patchiness on Tree Pipits Anthus trivialis breeding in Breckland pine plantations
Tree Pipit (Anthus trivialis) Science Article 1 abstract The British Tree Pipit Anthus trivialis population has shown a marked decline in recent decades, together with a range contraction that has been most apparent in central and southeast England. In East Anglia, the species is now largely restricted to heathland and, in particular, the conifer plantations […]
Song structure and repertoire sharing in the Tawny Pipit Anthuscampestris in Poland
Tawny Pipit (Anthus campestris) Science Article 3 abstract The present study characterizes the song of Tawny Pipit males (n = 55) recorded in May 2005 in theWielkopolska region of Poland. Tawny Pipits sang with a very variable rate of 4-28 songs per minute Tomasz S. OSIEJUK et al, ACTA ORNITHOLOGICA Vol. 42 (2007) No. 2 […]
Seasonal variation in nest mass and dimensions in an open-cup ground nesting shrub-steppe passerine: The Tawny Pipit Anthus campestris
Tawny Pipit (Anthus campestris) Science Article 2 abstract The probability of predation was unrelated to outer nest diameter nor was there any relationship between internal diameter and the presence of unhatched eggs. Wall thickness and nest mass declined as the season progressed but there was no relationship between these variables and the mean environmental temperature […]
Het verdwijnen van de Duinpieper
Tawny Pipit (Anthus campestris) Science Article 1 abstract Tot in de 19e eeuw kwamen in Nederland grote stuifzandgebieden voor. Met name op de Veluwe is in historische tijden verbitterd strijd geleverd tegen de uitbreiding van het zand, dat vrij spel kreeg door ontbossing en intensieve beweiding. Ook nu behoren onze zandverstuivingen tot de grootste van […]