Notes from Wood Thrush (Hylocichla mustelina) telemetry: Synchronous tail replacement in prebasic molt and single-male nest provisioning

2021 ◽  
Vol 132 (2) ◽  
Author(s):  
Vitek Jirinec ◽  
Chris J. Smith ◽  
Akshay Deverakonda ◽  
Matthias Leu
Keyword(s):  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Single Male ◽  
Nest Provisioning

scholarly journals Demographic Variables are Poor Indicators of Wood Thrush Productivity

The Condor ◽  
2002 ◽  
Vol 104 (1) ◽  
pp. 92-102 ◽  
Author(s):  
Todd J. Underwood ◽  
Roland R. Roth
Keyword(s):  
Nest Success ◽  
Temporal Trends ◽  
Significant Proportion ◽  
Demographic Variables ◽  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Return Rates ◽  
Annual Productivity ◽  
Productivity Indices ◽  
Population Indices

Abstract We tested the ability of 29 indices of productivity to predict and track actual productivity of a Wood Thrush (Hylocichla mustelina) population for 21 years and to detect year-to-year changes in that productivity. Of 29 indices tested, only the productivity of nests initiated in May showed promise. This index reasonably predicted productivity, correctly tracked two out of three temporal trends in productivity, and detected a significant proportion of year-to-year changes in actual productivity. Although they were not useful for predicting annual productivity, other indices based on nest data tracked trends in productivity moderately well, and all, except percent nest success, detected a significant proportion of year-to-year changes in productivity. Productivity indices based on non-reproductive variables, such as abundance of males or females, return rates, and veteran:novice ratios, did not reflect productivity trends or changes. From these results, we recommend that only an intensive measure of actual productivity or a partial measure of it, such as May productivity, be used to make inferences about annual productivity of a population. Indices based on other nest data should be used only for tracking productivity trends. Non-reproductive indices are unreliable for making any inferences about productivity. Las Variables Demográficas son Malas Indicadoras de la Productividad de Hylocichla mustelina Resumen. Pusimos a prueba la capacidad de 29 índices de productividad para predecir y seguir las variaciones anuales en la productividad real de una población de Hylocichla mustelina por un período de 21 años. De los 29 índices probados, sólo el de la productividad de los nidos iniciados en mayo resultó promisorio. Este índice predijo la productividad razonablemente bien y detectó correctamente dos de tres tendencias temporales en la productividad y una proporción significativa de los cambios anuales en la productividad real. Aunque no fueron útiles para predecir la productividad anual, otros índices basados en datos de nidos siguieron las tendencias en la productividad aceptablemente bien. Con excepción del porcentaje de nidos exitosos, todos estos índices detectaron una proporción significativa de las variaciones anuales de la productividad. Por su parte, los índices de productividad basados en variables no reproductivas como la abundancia de machos y hembras, las tasas de regreso y el cociente de aves veteranas: novatas no reflejaron las tendencias o cambios en la productividad real. Con base en estos resultados recomendamos que para hacer inferencias sobre la productividad anual de una población sólo se utilice una medida intensiva de la productividad, o una medida parcial de ésta (i.e., la productividad en mayo). Los índices basados en otros datos de nidos deben ser utilizados únicamente para monitorear las tendencias en la productividad. Los índices no reproductivos son poco confiables para hacer inferencias sobre la productividad.

scholarly journals Wood Thrush Movements and Habitat Use: Effects of Forest Management for Red-Cockaded Woodpeckers

The Auk ◽  
2002 ◽  
Vol 119 (1) ◽  
pp. 109-124 ◽  
Author(s):  
Jason D. Lang ◽  
Larkin A. Powell ◽  
David G. Krementz ◽  
Michael J. Conroy
Keyword(s):  
Habitat Use ◽  
Pinus Taeda ◽  
Loblolly Pine ◽  
Small Scale ◽  
Picoides Borealis ◽  
Adult Males ◽  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Dispersal Distances ◽  
Wood Thrushes

Abstract We monitored adult and juvenile breeding-season movements and habitat use of radio-tagged Wood Thrushes (Hylocichla mustelina) at the Piedmont National Wildlife Refuge, central Georgia, USA. We investigated the effects that management for Red-cockaded Woodpeckers (Picoides borealis), thinning and burning >30 year old loblolly pine (Pinus taeda) habitat, had on Wood Thrushes, a ground-foraging and midstory-nesting species. Adult Wood Thrush pairs regularly moved long distances between nesting attempts (range 1 to 17,388 m). The only experimental effect we found on adult movements was a decrease in weekly emigration rates (Ψ) from thinned and burned compartments after silvicultural management. Adult males preferred riparian hardwoods with sparse to moderate cover and those preferences increased following management. Juveniles remained near their nest site (x̄ = 177 m, SE = 113) for an average 24 days (SE = 6.3), and then dispersed a mean 2,189 m (SE = 342). Before dispersal, juveniles preferred upland hardwood–pine mixed habitat (P < 0.05) with moderate overstory cover (P < 0.05). We found no management effects on dispersal distances or predispersal habitat use. However, juveniles from thinned and burned compartments dispersed to hardwood habitats with dense cover, whereas birds from control compartments dispersed to pine-dominated habitats with sparse cover. All juveniles dispersed to areas with habitat similar to what they used before dispersal. Small-scale thinning and burning for Red-cockaded Woodpeckers may have had little effect on Wood Thrush habitat use and movements because typical movements were often larger than the scale (stand or compartment) targeted for management.

OFF-TERRITORY FORAYS AND GENETIC MATING SYSTEM OF THE WOOD THRUSH (HYLOCICHLA MUSTELINA)

The Auk ◽  
2008 ◽  
Vol 125 (1) ◽  
pp. 67-75 ◽  
Author(s):  
MELISSA L. EVANS ◽  
BRIDGET J. M. STUTCHBURY ◽  
BONNIE E. WOOLFENDEN
Keyword(s):  
Mating System ◽  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Genetic Mating System

Song learning in the wood thrush

1987 ◽  
Vol 65 (4) ◽  
pp. 1038-1042 ◽  
Author(s):  
Carl L. Whitney ◽  
Joan Miller
Keyword(s):  
Song Learning ◽  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Young Males ◽  
The Third ◽  
Structural Types ◽  
Wood Thrushes

A typical wood thrush (Hylocichla mustelina) song has three phrases. The first (A) is a series of low pitched sounds, the second (B) consists of loud flutelike notes, and the third (C) is usually a trill. Males have repertoires of two to eight different B phrases, which they use in different songs. In a previous study, males reared in isolation of adult song developed songs that were normal except for the structure of the B phrases. We tutored young males (at age 20–80 days) with recorded B phrases. The phrases were of four previously defined structural types, with four variants of each type, giving a total of 16 phrases. The variants of each type differed only in frequency (Hz). The objectives of the experiment were to determine (i) if wood thrushes copy the structure of B phrases that they hear as juveniles, and (ii) if they copy selectively in such a way as to develop repertoires of highly contrasting phrases. Results were obtained for five males. The B phrase repertoires developed by four subjects consisted entirely of phrases (N = 17) copied from the tutor tape. The repertoire of the fifth subject was of phrases (N = 4) that appeared not to be copied. The males that copied from the tutor tape showed no tendency to develop repertoires of highly contrasting B phrases. Three of the four males developed multiple versions of one or more phrase types, while ignoring other types, and in some cases these versions were very similar in frequency and other details of structure.

Conspecific and Interspecific Nest Reuse by Wood Thrush (Hylocichla mustelina)

2007 ◽  
Vol 14 (4) ◽  
pp. 629-636 ◽  
Author(s):  
Sonya Richmond ◽  
Erica Nol ◽  
Margaret Campbell ◽  
Dawn Burke
Keyword(s):  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Nest Reuse

scholarly journals A Productivity Model for Parasitized, Multibrooded Songbirds

The Condor ◽  
2006 ◽  
Vol 108 (2) ◽  
pp. 292-300 ◽  
Author(s):  
Larkin A. Powell ◽  
Melinda G. Knutson
Keyword(s):  
Simulation Model ◽  
Field Studies ◽  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Driftless Area ◽  
Annual Productivity ◽  
American Redstarts ◽  
Complex Life History ◽  
Species Specific ◽  
Wood Thrushes

Abstract We present an enhancement of a simulation model to predict annual productivity for Wood Thrushes (Hylocichla mustelina) and American Redstarts (Setophaga ruticilla); the model includes effects of Brown-headed Cowbird (Molothrus ater) parasitism. We used species-specific data from the Driftless Area Ecoregion of Wisconsin, Minnesota, and Iowa to parameterize the model as a case study. The simulation model predicted annual productivity of 2.03 ± 1.60 SD for Wood Thrushes and 1.56 ± 1.31 SD for American Redstarts. Our sensitivity analysis showed that high parasitism lowered Wood Thrush annual productivity more than American Redstart productivity, even though parasitism affected individual nests of redstarts more severely. Annual productivity predictions are valuable for habitat managers, but productivity is not easily obtained from field studies. Our model provides a useful means of integrating complex life history parameters to predict productivity for songbirds that experience nest parasitism.

scholarly journals Mismatch between diurnal home ranges and roosting areas in the Wood Thrush (Hylocichla mustelina): Possible role of habitat and breeding stage

The Auk ◽  
2016 ◽  
Vol 133 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Vitek Jirinec ◽  
Christina P. Varian ◽  
Chris J. Smith ◽  
Matthias Leu
Keyword(s):  
Home Ranges ◽  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Breeding Stage
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