Black-and-white Warbler (Mniotilta varia)

2020 ◽  
Author(s):  
John C. Kricher
Keyword(s):  
Black And White ◽  
Mniotilta Varia

scholarly journals Black-and-White Creeping-Warbler, Mniotilta varia, Linn. [Pl. 114]

1841 ◽  
Vol 2 ◽  
pp. 105-107
Author(s):  
John James Audubon
Keyword(s):  
Black And White ◽  
Mniotilta Varia

scholarly journals Mixed-Species Flocking and Foraging Behavior of Four Neotropical Warblers in Panamanian Shade Coffee Fields and Forests

The Auk ◽  
2003 ◽  
Vol 120 (4) ◽  
pp. 1000-1012
Author(s):  
Lars Y. Pomara ◽  
Robert J. Cooper ◽  
Lisa J. Petit
Keyword(s):  
Spatial Variation ◽  
Foraging Behavior ◽  
Social Situation ◽  
Predation Pressure ◽  
Social Situations ◽  
Shade Coffee ◽  
Black And White ◽  
Mniotilta Varia ◽  
Field Plots ◽  
Prey Items

Abstract We quantified foraging rates and foraging visibility metrics for four Neotropical warblers—Slate-throated Redstart (Myoborus miniatus), Golden-crowned Warbler (Basileuterus culicivorus), Wilson's Warbler (Wilsonia pusilla), and Black-and-White Warbler (Mniotilta varia)—under flocking and solitary conditions in western Panama to test hypotheses regarding the relative influences of predation pressure and social facilitation on foraging behavior. We also compared foraging behavior in primary forests and in traditionally managed shade coffee fields for two species (Slate-throated Redstart and Wilson's Warbler) to estimate spatial variation in foraging behavior and compare it to variation due to social situation (flocking or solitary). We then assessed the contribution of spatial variation in flocking propensity to the total spatial variation in foraging rates within species. We observed very little overall within-species variability in foraging behavior between social situations or study locations. Only Slate-throated Redstart's behavior was consistent with the hypothesis that flock membership reduces predation pressure and therefore reduces the amount of foraging time spent being vigilant against predators, allowing birds to forage more quickly and find more prey items per minute. No species' behavior supported the hypothesis that flocking birds forage more efficiently than solitary birds by obtaining useful information from flock mates about the location or suitability of foraging resources or techniques. The effort required to find prey items did not vary between study locations (forest and coffee field plots) for Wilson's Warbler. Because flocking also had no effect on foraging behavior of Wilson's Warbler, a reduction in flocking propensity in coffee habitat, relative to forest, did not cause further foraging behavior differences between study locations. Spatial variation in Slate-throated Redstart's foraging behavior independent of a flocking effect was minor; but flocking affected foraging rates, and flocking propensity was lower in coffee fields than in forest, so that location and flocking effects combined to widen foraging rate differences between locations. Thus, variations in flocking behavior and foraging behavior interacted differently for those two species.

scholarly journals Habitat use and foraging behavior of male Black-and-white Warblers (Mniotilta varia) in forest fragments and in a contiguous boreal forest

2004 ◽  
Vol 3 (1) ◽  
pp. 75-84
Author(s):  
Cynthia A. PASZKOWSKI ◽  
Navjot S. SODHI ◽  
Scott JAMIESON ◽  
Sandra A. ZOHAR
Keyword(s):  
Habitat Use ◽  
Boreal Forest ◽  
Foraging Behavior ◽  
Forest Fragments ◽  
Black And White ◽  
Mniotilta Varia

scholarly journals Winter Site Fidelity of Nearctic Migrants in Shade Coffee Plantations of Different Sizes in the Dominican Republic

The Auk ◽  
2000 ◽  
Vol 117 (3) ◽  
pp. 596-614 ◽  
Author(s):  
Joseph M. Wunderle ◽  
Steven C. Latta
Keyword(s):  
Dominican Republic ◽  
Site Fidelity ◽  
Home Ranges ◽  
Natural Forests ◽  
Shade Coffee ◽  
Coffee Plantations ◽  
Dendroica Caerulescens ◽  
Black And White ◽  
Mniotilta Varia ◽  
Mean Size

Abstract We studied three Nearctic migrant species (American Redstart [Setophaga ruticilla], AMRE; Black-and-white Warbler [Mniotilta varia], BAWW; Black-throated Blue Warbler [Dendroica caerulescens ], BTBW) wintering in 14 isolated shade coffee plantations (0.1 to 8.7 ha) in the Dominican Republic to determine if site fidelity was comparable to that in tropical forests and if it decreased with plantation size. Site fidelity was measured as the percentage of wandering birds captured in mist nets, as overwinter site persistence of uniquely marked birds observed on the same sites (November to March), and as annual return of marked individuals to previously occupied sites (January to January). The percentages of wanderers in net captures were mostly lower than values reported for natural forests (AMRE 21%, BAWW 12%, BTBW 41%) and did not vary with plantation size. Overwinter site persistence (AMRE 65%, BAWW 65%, BTBW 76%) and annual return (AMRE 34%, BAWW 40%, BTBW 31%) in the plantations fell within the range of values reported for natural forests. Overwinter site persistence decreased with plantation size only in AMRE, although BAWW showed lower persistence in small plantations from early to midwinter. Annual return decreased with plantation size only in AMRE. Despite diminished site fidelity in small plantations, these birds showed some fidelity to small plantations, many of which were smaller than the mean size of winter home ranges.

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