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Natalie V. Sánchez @natingui.bsky.social · 21/07/2026

We appreciate the support of all these institutions and organizations

Natalie V. Sánchez @natingui.bsky.social · 21/07/2026

We recorded vocalizations of Wood Thrush on the non-breeding grounds in Costa Rica to estimate its occupancy and found that occupancy increased with precipitation

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Natalie V. Sánchez @natingui.bsky.social · 21/07/2026

New paper 🇨🇷🎙️🎶🐦 Wood Thrush (Hylocichla mustelina) occupancy patterns reveal sensitivity to low precipitation on nonbreeding grounds in northern Costa Rica - Ibis - Wiley onlinelibrary.wiley.com/doi/10.1111/... @gdfcf.bsky.social @uwindsor.bsky.social @wildlifeacoustics.com #cienciatica

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Natalie V. Sánchez @natingui.bsky.social · 14/05/2026

Yesterday I gave a talk (in Spanish) on my research about chronic noise to the Landscape Ecology class at the University of Costa Rica. A nice throwback to my PhD project! 🐦🇨🇦

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Natalie V. Sánchez @natingui.bsky.social · 12/03/2026

Science and art! Sketching an antlion larvae!

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Natalie V. Sánchez @natingui.bsky.social · 19/02/2026

We thank the many people who supported this research. 🧵7

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Natalie V. Sánchez @natingui.bsky.social · 19/02/2026

Overall, predation risk appears to shape the evolution of vocal communication by influencing how animals signal and adjust their behavior in the presence of threats. 🧵6

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Natalie V. Sánchez @natingui.bsky.social · 19/02/2026

Calling time (calls produced by males and females) was higher when the predator were presented near the nest. 🧵5

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Natalie V. Sánchez @natingui.bsky.social · 19/02/2026

We found that birds responded more quickly shorter when predators were presented near the nest, both for males and females. 🧵4

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Natalie V. Sánchez @natingui.bsky.social · 19/02/2026

The study area was a tropical dry forest of Costa Rica in Sector Santa Rosa where wrens inhabit old-growth forests and old secondary forests. Simulated owls were presented 5 m and 20m from their nest. 🧵3

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Natalie V. Sánchez @natingui.bsky.social · 19/02/2026

We designed a multi-modal experiment to test whether the perception of a potential predador modifies the vocal behaviour of Rufous-and-white wrens (Thryophilus rufalbus) near their reproductive nest. 🧵2

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Natalie V. Sánchez @natingui.bsky.social · 19/02/2026

Our new paper is out today in Ethology: "In the Danger Zone: Wrens Respond More Strongly to Experimentally Simulated Predators Near Their Nest" With Dan Mennill @dmennill.bsky.social How do tropical wrens respond to simulated predators near their nest? onlinelibrary.wiley.com/doi/10.1111/... 🧵1

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Natalie V. Sánchez @natingui.bsky.social · 07/11/2025

Successful Master's thesis defense of my student Isabel Vargas at the University of Costa Rica. She studied environmental and forest structure factors affecting Wood Thrush occupancy in Northern Costa Rica Project funded by @gdfcf.bsky.social

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Natalie V. Sánchez @natingui.bsky.social · 18/08/2025

Grateful for the opportunity to present my postdoctoral research in the Mennill Lab at #AOS2025 on vocal behaviours of Rufous-and-white wrens in the presence of an owl predator near and far from the nest. It was wonderful to reconnect with old friends and meet new ones. 🐦🎶🦉 @dmennill.bsky.social

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Natalie V. Sánchez @natingui.bsky.social · 19/06/2025

Rufous-and-white Wren tweaking its nest. June 18, 2025. Sector Santa Rosa, ACG. 🍂🪺

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Natalie V. Sánchez @natingui.bsky.social · 28/05/2025

Last April, we nano-tagged Swainson's Thrush in Monteverde, 🇨🇷 to contribute to understand their migration pathways. This is part of GDFCF @gdfcf.bsky.social BioAve project We detected them by our Motus stations at Área de Conservación Guanacaste and in their way North. @birdscanada.bsky.social

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Natalie V. Sánchez @natingui.bsky.social · 28/10/2024

New project on wren feather colour 🪶🎨🐦🇨🇷🇨🇦 with Dan Mennill @DMennill and a collaboration with Stephanie Doucet. More updates soon!

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Natalie V. Sánchez @natingui.bsky.social · 16/10/2024

This study was led by me in collaboration with wonderful coauthors @IsabelVargasCR, María José Espejo-Uribe @Jose_lafina13, and with my postdoc supervisor @DMennill Financial support @NSERC_CRSNG @AnimBehSociety @gdfcf_org Read our paper...

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Natalie V. Sánchez @natingui.bsky.social · 16/10/2024

Song-type switching was not affected by the local density, contrary to what we originally expected. Local density modify the vocal behavior or birds (4/5)

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Natalie V. Sánchez @natingui.bsky.social · 16/10/2024

Males sang at higher rates when the local density increased. Females showed a similar pattern in singing rate. However, the effect was marginal. Duet rate did no change. Local density modify the vocal behavior of birds (3/5)

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Natalie V. Sánchez @natingui.bsky.social · 16/10/2024

We used an innovative experimental design to increase the apparent local density of conspecific territorial neighbors using programable speakers in the field. Wren illustrations by Caleb Sequeira-Ulate (2/5)

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Natalie V. Sánchez @natingui.bsky.social · 16/10/2024

Our new paper is out in Behavioral Ecology: “Neighbors affect vocal behavior of tropical wrens: a multispeaker density-manipulation experiment” doi.org/10.1093/beheco/arae075 Check out what we found (🧵1/5)

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Natalie V. Sánchez @natingui.bsky.social · 22/07/2024

Honored to be one of the plenary speakers at the VII Congreso Costarricense de Ornitología #cienciatica I talked about sparrows, wrens, songs, predation, and nocturnal flight calls 🎶🐦🦉Projects in 🇨🇷🇨🇦 with @DMennill

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Natalie V. Sánchez @natingui.bsky.social · 18/07/2024

🚨Mañana estaré dando una plenaria en el VII Congreso de Ornitología Costarricense! Estaré presentado los resultados de mi investigación de aves en 🇨🇷🇨🇦 🎶🐦🦉 Tomorrow, I will be presenting a plenary in the VII Congreso de Ornitología Costarricense!

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Natalie V. Sánchez @natingui.bsky.social · 20/06/2024

We highlight two existing experimental designs, and we propose a new playback-based experimental design, to study conspecific density and avian vocal behaviours. We argue that more research on this topic is needed. Read our paper here: rdcu.be/dLlPs 🧵3/3

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Natalie V. Sánchez @natingui.bsky.social · 20/06/2024

In our review, we found 19 published studies of birds that included data on vocal behaviour in relation to the number of conspecific neighbours. Only a few birds were tropical 🌴. Only a few involved studies of female birds ♀️. 🧵2/3

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Natalie V. Sánchez @natingui.bsky.social · 20/06/2024

I'm thrilled to share my new paper on the effects of local density on avian vocal behaviours. Out today in Journal of Ornithology by me and @Dmennill. Read it here: doi.org/10.1007/s10336-024-02188-7 Here's what we found... 🧵1/3

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Natalie V. Sánchez @natingui.bsky.social · 03/06/2024

More wren adventures! Now in Monteverde 🇨🇷☁️🌳 Thanks @pabloallencr CIEE Director and the CIEE staff for having me. 🇨🇦🇨🇷🔊🐦 It was great to see old friends and make new ones. @DMennill @iBioUWindsor

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Natalie V. Sánchez @natingui.bsky.social · 21/05/2024

New study site! More wren adventures! 🇨🇷🇨🇦🎙️🐦

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Natalie V. Sánchez @natingui.bsky.social · 09/05/2024

Black-headed Trogon enjoying a short but refreshing rain in the dry forest @ACGuanacaste @iBioUWindsor Field work @DMennill Lab 🇨🇦🇨🇷 Est@ amiguit@ parecía disfrutar la lluvia 🍂💦🐦

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Natalie V. Sánchez @natingui.bsky.social · 23/04/2024

Thank you Robert @rpuschen for the invitation to talk about wrens and nocturnal flight calls to a great group of @PlymUni students. Always is exciting to share what we do @DMennill Lab @iBioUWindsor 🇨🇦🇨🇷🎶🐦 @gdfcf_org @tropicalstudies @MitacsCanada @BirdsCanada @WildlifeAcoust

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Natalie V. Sánchez @natingui.bsky.social · 01/03/2024

Wood Thrush paper out! We studied Wood Thrush occupancy during the non-breeding seasons @ACGuanacaste Costa Rica 🇨🇷🐦. BioAve team Katherine @kathrush_bird, Cesar @cesar_estevo and @gdfcf_org. Financial support by @USFWSBirds...

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Natalie V. Sánchez @natingui.bsky.social · 29/12/2023

A gift for my sister in law 🐦‍⬛🩵

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Natalie V. Sánchez @natingui.bsky.social · 30/10/2023

Talk about BioAve project @ACGuanacaste for the parataxonomists. Thank you @gdfcf_org for the invitation to this workshop! 🐦🎶🇨🇷🇨🇦

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Natalie V. Sánchez @natingui.bsky.social · 01/06/2023

I made it to the cover of the Wildlife Professional magazine May/June 2023 issue! #NoisePollution effects on wildlife @wildlifesociety

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Natalie V. Sánchez @natingui.bsky.social · 04/05/2023

Milena Salazar @milennna__ recently visited @ACGuanacaste and spent time in the field filming, recording songs, and banding birds with us. We are excited about the ideas @milennna__ gathered for her next documentary. We loved her company and her pictures so much! 🐦🎶🇨🇦🇨🇷🦉🎬🎤🎥

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Natalie V. Sánchez @natingui.bsky.social · 21/04/2023

Banding time of one of my favourite species 🐦✨ Rufous-and-white Wrens in @ACGuanacaste. Long term project and new projects with @DMennill, @Zapata_D_, María José Espejo, and @IsabelVargasCR

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Natalie V. Sánchez @natingui.bsky.social · 23/03/2023

Today we deployed a bucket baffle recorder in a new location. This time we are monitoring birds in migration in the city. Thank you to our new collaborators @tropicalstudies and @PabliBird Pablo Muñoz Education Coordinator (OTS). 🐦🎶🎙️🇨🇷

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Natalie V. Sánchez @natingui.bsky.social · 12/03/2023

Today we affixed the first tag on a Wood Thrush (Hylocichla mustelina). This is the part of the long-term monitoring program BioAve @gdfcf_org at Pitilla Biological Station @ACGuanacaste. With me @IsabelVargasCR BioAve team.

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Natalie V. Sánchez @natingui.bsky.social · 16/02/2023

Today I had the honor to give a Seminar for the Integrative Biology Department @uofg Thank you @Alex_Smith_Ants for the invitation! The seminar was recorded, so stay tune for the video! 🐦🎶🇨🇷🇨🇦

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Natalie V. Sánchez @natingui.bsky.social · 18/01/2023

Our experimental design: We used 3 pairs of loudspeakers to simulate 3 additional pairs of wrens, increasing the apparent density of conspecifics. We compared the behaviour of territorial males and females before and after the density manipulation experiment #AnimBehav2023 /5

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Natalie V. Sánchez @natingui.bsky.social · 18/01/2023

In addition to our literature review, we conducted a playback experiment. We manipulated density to test the effects of changes in the number of neighbours, studying Rufous-and-white Wrens @ACGuanacaste in the tropical dry forest of Costa Rica. #AnimBehav2023 /4

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Natalie V. Sánchez @natingui.bsky.social · 18/01/2023

Our literature review reveals that little is known about the effects of density on songbirds vocal behaviour. We also found that existing studies are biased towards the vocal behaviour of males in temperate regions. #AnimBehav2023 /3

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Natalie V. Sánchez @natingui.bsky.social · 18/01/2023

We conducted a systematic review of the literature on the effects of density on bird song. We found a limited number of papers on this topic. #AnimBehav2023 /2

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Natalie V. Sánchez @natingui.bsky.social · 23/12/2022

This wonderful infographic summarizes two of my Ph.D. thesis chapters studying Lincoln's Sparrow responses to chronic industrial noise. Happy to share the article recently published in @IBIS_journal by email. @FrontEcolEvol article is open access.

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Natalie V. Sánchez @natingui.bsky.social · 21/12/2022

Day 1 and 2 of our December field trip to Guanacaste for the BioAve project @gdfcf_org monitoring Wood Thrush 🐦 in the Caribbean forest of 🇨🇷 working with local parataxonomists Petrona Ríos, Manuel Ríos and @IsabelVargasCR UCR Maters student.

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Natalie V. Sánchez @natingui.bsky.social · 07/12/2022

The third chapter of my Ph.D. thesis is accepted for publication in @IBIS_journal Lincoln's Sparrow increased the singing rate to deal with chronic industrial noise. The article will be available online very soon!

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Natalie V. Sánchez @natingui.bsky.social · 25/10/2022

Last weekend I visited one of my partner collaborators of the @MitacsCanada postdoc fellowship. I was amazed by the work that @BirdsCanada and @LongPointBirdOb do for bird conservation. Thank you @DMennill @BirdsCanada for your support.

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Natalie V. Sánchez @natingui.bsky.social · 21/10/2022

Today I had the opportunity of being part of the banding team @LongPointBirdOb Thank you @DMennill and @BirdsCanada_ON for your support! @DMennill you were missed here!

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Natalie V. Sánchez @natingui.bsky.social · 21/07/2022

First in person meeting of the year #ABS2022 as a Postdoc representing @DMennill Lab and @iBioUWindsor / Mi primera conferencia del año cómo Postdoc del @DMennill Lab #ABS2022 🐦🐝🐸🦇

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