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 […]
Category: Passeriformes
Impaired hatching success and male-biased embryo mortality in Tree Sparrows
Tree Sparrow (Passer montanus) Science Article 4 abstract During the past 30 years, many species of farmland birds have declined dramatically in numbers in Northern Europe, a trend coinciding with a tremendous intensification of agriculture, although the exact causes of these declines remain unclear. One of the worst affected species is the Tree Sparrow (Passer […]
Spring temperatures and laying dates of first eggs of three passerines in Croatia
Tree Sparrow (Passer montanus) Science Article 7 abstract This study is based on the spring temperaturesand laying dates of first eggs of threepasserines (sedentary: Great Tit, Parus majorand Tree Sparrow, Passer montanus; migratory:Starling, Sturnus vulgaris). Laying datesof first eggs were used as estimates of timingof breeding. The term ‘laying date’ is definedas the date 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 […]
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 […]
Seasonal and interannual variability in laying date, clutch size, egg volume and hatching asynchrony of four lark species in Mediterranean Spain
Thekla Lark (Galerida theklae) Science Article 2 abstract To describe the variation in laying date, clutch size, egg volume and hatching asynchrony of four lark species (Skylark Alauda arvensis, Short-toed Lark Calandrella brachydactyla, Thekla Lark Galerida theklae and Lesser Short-toed Lark Calandrella rufescens) and at two different time scales: between years (large-scale variation), and within […]