scholarly journals Predator guards on nest boxes improve nesting success of birds

2017 ◽  
Vol 41 (3) ◽  
pp. 434-441 ◽  
Author(s):  
Robyn L. Bailey ◽  
David N. Bonter
Keyword(s):  
Nesting Success ◽  
Nest Boxes

scholarly journals Nesting success of the oriental magpie robinCopsychus saularisin nest boxes and tree cavities

2016 ◽  
Vol 22 (6) ◽  
pp. 277-283 ◽  
Author(s):  
Amar Singh ◽  
Dinesh Bhatt ◽  
Vinaya Kumar Sethi ◽  
Navjeevan Dadwal
Keyword(s):  
Nesting Success ◽  
Nest Boxes ◽  
Tree Cavities

scholarly journals Great tit (Parus major) breeding in fire-prone oak woods: differential effects of post-fire conditions on reproductive stages

2011 ◽  
Vol 20 (4) ◽  
pp. 605 ◽  
Author(s):  
Enrico Bellia ◽  
Daniela Campobello ◽  
Maurizio Sarà
Keyword(s):  
Brood Size ◽  
Parus Major ◽  
Great Tit ◽  
Nesting Success ◽  
Avian Species ◽  
Occupancy Rate ◽  
Reproductive Parameters ◽  
Nest Boxes ◽  
Successional Stages ◽  
In Fire

Wildfires negatively affect the overall reproductive success of several woodland avian species, but there is scarce information about which stages of the nesting cycle are specifically affected. We conducted a 3-year study to identify the effects of fire on the reproductive parameters of the great tit (Parus major) and the survival of its nests at different stages of the nesting cycle. We recorded the occupancy rate, clutch and brood size, hatching, fledging and nesting success in nest boxes placed on study plots with different post-fire age. By examining the post-fire succession, we analysed the survival of eggs and nestlings under predation risks. As the forest matured after a wildfire, tits occupied more nest boxes and laid more eggs that suffered less predation than in earlier successional stages. Although the incubation fate improved at each step of succession, the conditions to fully raise nestlings seemed to be suitable only in the oldest woods. Our findings indicate that the population dynamics of a reputed generalist avian species may be affected by fire. Furthermore, the effects of wildfires on stage-specific reproductive parameters show that an avian species that inhabits woodlands regains its full productivity only when its habitat has completely recovered from fire.

scholarly journals A Comparison of the Characteristics and Fate of Barrow's Goldeneye and Bufflehead Nests in Nest Boxes and Natural Cavities

The Condor ◽  
2002 ◽  
Vol 104 (3) ◽  
pp. 610-619 ◽  
Author(s):  
Matthew R. Evans ◽  
David B. Lank ◽  
W. Sean Boyd ◽  
Fred Cooke
Keyword(s):  
Clutch Size ◽  
Canopy Cover ◽  
Forest Edge ◽  
Nesting Success ◽  
The Other ◽  
Nesting Ecology ◽  
Nest Boxes ◽  
Cavity Nesting ◽  
Bucephala Islandica ◽  
Cavity Nests

Abstract Barrow's Goldeneye (Bucephala islandica) and Bufflehead (B. albeola) are cavity-nesting waterfowl that have received considerable attention in studies using nest boxes, but little is known about their nesting ecology in natural cavities. We found larger clutch size, lower nesting success, and different major predators for Barrow's Goldeneyes nesting in boxes versus those nesting in natural cavities, but few differences for Bufflehead. These differences are attributed to the location and physical differences between Barrow's Goldeneye nest boxes and natural cavities that affect their conspicuousness to predators and conspecific nest-parasitizing females. Goldeneye boxes were concentrated in highly visible locations such as trees at water or forest edge. Natural cavity nests, on the other hand, were often abandoned Pileated Woodpecker (Dryocopus pileatus) cavities, which were more dispersed throughout the forest interior and concealed under dense canopy cover. Bufflehead natural cavity nests were typically closer to edges, which may account for their similarity with boxes. We conclude that in some respects, studies of Barrow's Goldeneye that use nest boxes may not be representative of birds nesting in natural cavities, whereas those of Bufflehead are more likely to be so. Comparación de la Ecología de Nidificación de Bucephala islandica y B. albeola en Nidos Artificiales y en Cavidades Naturales Resumen. Los especies de patos Bucephala islandica y B. albeola anidan en cavidades, por lo que con frecuencia han sido estudiadas usando nidos articificales, pero poco se conoce sobre su ecología de nidificación en cavidades naturales. Los individuos de B. islandica que anidan en nidos artificiales presentaron nidadas más grandes, menor éxito reproductivo y distintos depredadores que los individuos que anidan en cavidades naturales, pero detectamos pocas diferencias para B. albeola. Estas diferencias son atribuidas a la ubicación y a las diferencias físicas entre los nidos artificiales y las cavidades naturales de B. islandica que afectan su visibilidad para deprededores y hembras coespecíficas que parasitan los nidos. Los nidos artificiales de B. islandica estuvieron concentrados en lugares muy visibles como árboles al borde del bosque o a la orilla del agua. Por el contrario, las cavidades naturales frecuentemente fueron cavidades abandonadas de Dryocopus pileatus, las cuales se presentaron más dispersas por el interior del bosque y ocultas bajo un dosel denso. Las cavidades naturales de B. albeola se ubicaron típicamente más cerca del borde, lo que tal vez explica la semejanza con los nidos artificiales. Concluimos que en algunos casos, los estudios de B. islandica que utilizan nidos artificiales pueden no ser representativos de individuos que anidan en cavidades naturales, mientras que los estudios de B. albeola probablemente sí sean más representativos.

scholarly journals Demography, breeding success and effects of nest type in artificial colonies of Red-footed Falcons and allies

2015 ◽  
Vol 23 (1) ◽  
pp. 1-21 ◽  
Author(s):  
László Kotymán ◽  
Szabolcs Solt ◽  
Éva Horváth ◽  
Péter Palatitz ◽  
Péter Fehérvári
Keyword(s):  
Clutch Size ◽  
Reproductive Performance ◽  
Nesting Success ◽  
Limiting Factor ◽  
Artificial Nests ◽  
Breeding Sites ◽  
Nest Box ◽  
Nest Boxes ◽  
Artificial Breeding ◽  
Nest Type

Abstract Shortage of breeding sites is an important limiting factor of bird populations. Artificial breeding platforms, nest-boxes or man-made twig nests often present solutions with remarkable results, however long-term sustainability of these populations remains to be resolved. Furthermore, the question whether the inference of results of studies conducted on birds breeding in artificial breeding sites can be generalized to other populations, still remains open. Here we present the history, and the results of a 20 year old (1995-2015) nest-box programme initiated to increase potential breeding possibilities of Red-footed Falcons in an area, where nest-site shortage was a severe limiting factor. We show how various other species (Jackdaws, Kestrels and Long-eared Owls) have utilized these resources, and present descriptive statistics on their reproductive performance. Analysing the data of a total of 1432 breeding attempts, we show that Red-footed Falcons have similar clutch sizes, and nesting success (i.e. ratio of nests with at least on fledgling), however fledging success (ratio of the number of eggs/fledged nestlings) was different in artificial nest-boxes. When we excluded closed box types from artificial nests, this difference was not apparent. In case of Kestrels (n=1626 breeding attempts) clutch size was significantly higher in artificial nests, while we found no difference in fledging or nesting success. When only comparing open boxes to natural nests, the difference in clutch size was no longer significant. We also analysed the effect of nest box design on reproductive parameters of the two species using regression trees. Inter annual effects were the most important in shaping clutch size and fledging rate of both falcon species, however we also found nest-box design effects, but only in Red-footed Falcons. In years when mean clutch size was high, these birds had lower clutch size in an older, darker nest-box type compared to an alternative design, and to open boxes. However, fledging rate in the same years was lower for both open boxes and older nest-boxes. We conclude that artificial colonies are an important and successful tool in Red-footed Falcon conservation, and that the breeding parameters measured in artificial colonies depend on nest-box design. We present correlative evidence that closed boxes have a significant positive species specific effect on reproduction, probably due to their protection against weather. We also show that birds may have a preference for a certain nest-box design, and that the breeding success in the less favoured box type may be similar to that in open nests. We recommend that future studies incorporate nest-type and nest-box design effects in all comparisons made on reproductive performance in case of Red-footed Falcons and Kestrels.

Nest Boxes for White-Throated Needletailed Swift Hirundapus caudacutus to Promote Conservation and Support Ecological Research

2020 ◽  
Vol 19 (2) ◽  
pp. 217
Author(s):  
Noriyuki M. Yamaguchi ◽  
Sayaka Mori ◽  
Hiroshi Yonekawa ◽  
Daichi Waga ◽  
Hiroyoshi Higuchi
Keyword(s):  
Ecological Research ◽  
Nest Boxes
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