If you were a bird flying thousands of miles over land or sea with other migrating birds, what would you talk about to pass the time?
Songbirds may converse with other species during their long migrations, forming social bonds and possibly exchanging information about the flight, according to a new study led by researchers at University of Illinois Urbana-Champaign (UIUC).
“The night sky teems with migrating songbirds, aloft in their millions following routes etched in evolutionary time. But those flight paths may not be entirely innate,” a press release from UIUC said.
The researchers analyzed data from more than 18,300 hours of calls recorded in-flight, which suggested songbirds might “talk” with migration mates.
“We can’t be sure what they’re saying, but birds might broadcast calls during flight to signal their species, age, and sex. And we can certainly speculate that these flight calls could relate to navigation or finding suitable stopover habitat,” said lead author of the study Benjamin Van Doren, an assistant professor in UIUC’s Department of Natural Resources and Environmental Sciences, in the press release.
Research from 2024 by co-authors of the new study at the University of Maryland Center for Environmental Science, Appalachian Laboratory found evidence to suggest that songbirds “buddy up” with other migrating species at stopover sites, but until now there wasn’t any evidence that different species “pair up or communicate vocally on the wing.”
Van Doren believes memory and innate patterning are important drivers of behaviors during migration, but said “it’s time to rethink songbird migration through a social lens.”
“In recent years, there has been an increasing recognition of the importance of social information in bird migration, but scientists have mainly documented this in species that travel during the day or in family groups,” Van Doren noted. “The social environment also seems to be important in species like hawks and storks that form huge aggregations during their daytime migrations. Young birds learn behaviors from observing other birds and how they navigate — and not necessarily from family.”
Most songbirds make their journeys at night, when visual cues aren’t necessarily discernable. This led Van Doren to think about the possibility of other social cues, so he used his access to acoustic recordings from 26 sites of autumn nocturnal bird migrations in eastern North America taken over a three–year period.
“These nocturnal acoustic recordings are really the only window onto this unseen but absolutely massive flow of birds — hundreds of millions aloft over the U.S. on any given night during migration,” Van Doren said. “It’s something people aren’t usually aware of because it happens when we’re sleeping.”
The thousands of hours of recordings were processed by a machine learning tool that allowed the research team to detect 27 species’ signature flight calls, including 25 well-sampled songbirds.
The team first identified species, then measured the frequency with which certain calls co-occurred, testing at intervals of 15 seconds, half a minute and one minute. They found associations that were stronger than would be expected by chance, regardless of the time elapsed.
Searching for an explanation of the associations, the researchers found that the similarity of calls and wing lengths of species were most important. By contrast, birds who “buddy up” during migration stopovers were not maintaining the same relationships while flying, nor were they necessarily in the air with closely related birds or species who shared their specific habitat preferences.
“Species with similar wing sizes were more likely to associate, and wing length is directly linked to flight speed. If you imagine two species flying at similar speeds because they have similar wings, then it’s much easier for them to stick together,” Van Doren explained. “As for vocalizations, it is possible that species’ calls have converged over time because of this social link or that species that happen to give similar calls are simply more likely to gravitate towards each other.”
Van Doren noted that 25 individuals was a small representative subset of songbird species who migrate at night, some of whom don’t vocalize during flight. Van Doren and his team have plans to conduct more research, including tracking individual birds’ “conversations” with flight partners by attaching tiny microphones to be worn throughout their migrations.
The preliminary results bring up many speculative theories, such as that short-lived songbird species who aren’t able to rely on their parents for guidance might rely on social ties during the journey. In addition, the rapid loss of bird biodiversity due to habitat destruction and climate change may jeopardize co-migrating partner species.
“This study really calls into question the long-held idea that songbirds migrate alone, solely following their own instincts,” Van Doren said. “Learning more about the consequences of these social connections — not only for migration, but also for other aspects of their biology — will be important to inform and manage the risks they face in a changing world.”
The post Songbirds Have In-Flight ‘Conversations’ With Other Species During Migration, Study Shows appeared first on EcoWatch.
https://www.ecowatch.com/songbirds-migration-conversations.html
As a longtime book lover, I may be biased, but I think a full bookshelf is one of the most beautiful additions to a space. There’s nothing better than seeing a showcase of your favorite reads alongside a TBR list.
A bookcase, though, can of course be used for all sorts of purposes from placing your favorite photos of family and friends to showcasing treasured vintage finds.
Whatever the case, this guide will help you find the right sustainable bookshelf for your living room, office, or wherever you like to cozy up with a good read!
So what make a bookcase more sustainable? What makes a bookshelf non-toxic?
First of all: sustainable and non-toxic are two overlapping — but distinct — criteria. And both of those terms can come with a lot of opinions and varying definitions.
When it comes to sustainable bookcases, I look for:
- Responsibly Sourced Materials: most bookshelves are made primarily with wood. While natural, unsustainable wood sourcing can be a cause of deforestation, so we want to see that the wood was from responsibly managed forests or made from reclaimed or repurposed wood. Some bookshelves may feature metal, in which case recycled materials here are important.
- High Quality Construction: sustainability includes longevity — how long will you be able to use that furniture piece before it goes to the landfill and gets replaced? Look for transparency around craftsmanship and woodworking processes. Another sign of quality is the length of warranty a company has for its products.
- Ethically Made: this one is straightforward in theory — were the people making it paid fairly and working in safe conditions? — but is unfortunately not always easy to find information. In this category, I look for transparency in practices, what relationship the brand has with the manufacturer (some produce in-house which is the best case scenario for transparency!), where it was made, and how well the makers were paid.
Ideally a sustainable bookshelf would also be non-toxic — as toxic chemical fumes aren’t exactly sustainable! But this isn’t always the case. For example, if a company prioritizes upcycled materials, they don’t necessarily have control over what inputs were part of the original materials. And sometimes a company focuses more on ethical artisan partnerships and sustainable wood sourcing, more than, say, using non-toxic finishes.
But when it comes to non-toxic bookshelves, this is what I look for. (Note that non-toxic doesn’t necessarily mean safe for all chemical sensitivities. Nor does it mean zero potentially irritating chemicals.)
- Solid Wood (where possible): MDF or pressed wood contains glue to stick the various wood pieces together, which can contain added formaldehyde. I prefer solid wood, or if it is engineered wood, I’d make sure the company is transparent around the type of glue used and/or they at least have a product certification like GREENGUARD. (More on that in a second.)
- Low or Zero VOC Finishes: most wood furniture is completed with some sort of finish to provide a protection against scratches or moisture. Many of these finishes are synthetic, and some can contain high levels of toxic chemicals. Look for a natural finish like linseed oil or beeswax or a low VOC synthetic finish.
Relevant Certifications
You’ll see a few certifications referenced throughout this guide. Here’s what each one covers:
- FSC Certified = the wood sourcing was responsibly managed; this is not a finish, foam, or textile guarantee.
- GREENGUARD / GREENGUARD Gold Certified = the finished product was tested for low chemical emissions, including VOCs, with Gold representing the stricter tier.
- Fair Trade Certified
= verifies that a factory meets standards for fair wages, safe working conditions, and ethical labor practices. - Cradle to Cradle Certified (Gold) = evaluates a product or material across material health, circularity, clean air/climate, water/soil stewardship, and social fairness.
Where to Find Sustainable Bookcases and Shelving
I’m always a secondhand first proponent, and that goes for furniture, too. While your local thrift store might not have used bookshelves, check for dedicated furniture resale shops near you or estate sales. (I use EstateSales.net to find ones near me.) You can also find gently used pieces on online marketplaces like Facebook Marketplace, OfferUp or AptDeco.
If you can’t find something you love secondhand, and you don’t want to DIY your own bookshelf, then the next best choice is to shop from one of the sustainable furniture companies below. (If you’re simply looking for a bookstand, I’d suggest browsing Etsy for a collection of solid wood, bamboo, and reclaimed wood book stands and cookbook stands!)
Note that this guide includes affiliate links, which means we may earn a small commission if you purchase through these links which helps us continue to run this website and create resources like these. As always all brands meet strict sustainability criteria and are brands we love — and that we think you’ll love too!
1. Medley
Best for: low VOC wood bookcases
Medley’s bookshelves are elegant and elevated, perfect for a living room. Each piece is made with 100% solid FSC-certified hardwood for the tops and sides, though low-VOC CARB 2 compliant plywood is used for the shelves.
Every eco-friendly bookcase is handcrafted in the US (California or North Carolina) and completed with a low-VOC wood finish.
Price: $2,395 – $2,995
Materials: White Maple, American Walnut Wood
Conscious Qualities: Made-to-Order, US-Made, FSC-Certified Wood, Natural Finish
2. Thuma
Best for: non-toxic modular bookshelf
Thuma’s eco-friendly bookshelf is made from upcycled wood sourced from rubberwood trees no longer being used to source rubber. The brand’s bookshelf is also GREENGUARD Gold certified.
What makes Thuma’s bookshelf stand out to me, though, is its modularity — their Pillar Bookshelf can be set in 10 different configurations. And if you start with just a few shelves but later decide you want a larger bookshelf, you can simply buy an additional shelf or two to add on to it!
Price Range: $550 – $3,300
Materials: Upcylced Rubber Wood
Conscious Qualities: GREENGUARD Gold Certified, Repurposed Materials, Adaptable
3. West Elm GREENGUARD Certified
Best for: low-tox bookcases and bookracks for kids
This furniture retailer has plenty of adorable, but functional, bookshelves for a playroom or kids’ bedroom. From cubby bookcases to mid-century bookracks, you’ll find plenty of options that are not only GREENGUARD certified, but made in Fair Trade Certifiedfactories, and/or with FSC-certified wood. Note that the company’s bookshelves are made with engineered wood, though.
West Elm also has GREENGUARD certified bookcases large enough for the adults too!
Price: $399 – $2,897
Materials: Solid Wood, Reclaimed Wood
Conscious Qualities: Fair Trade, FSC Certified, and GREENGUARD Certified Options
4. Urban Natural
Best for: a variety of eco-friendly bookshelves
This natural home retailer has sustainable bookcases in all shapes and sizes. From traditional bookcases to open-back asymmetrical shelving units, Urban Natural has options for any interior aesthetic. Each brand they carry values quality craftsmanship, responsible production, and sustainable sourcing.
Price: $1,099 – $5549
Materials: Solid Teak, Maple, Cherry, Walnut, Birch (varies by brand)
Conscious Qualities: FSC-Certified Options, USA-Made Options, Low VOC Finish Options (varies by brand)
5. MasayaCo
Best for: sustainably-sourced wood bookshelves
MasayaCo has a stunning collection of sustainable shelves and bookcases handcrafted by artisans in Nicaragua. Not only is each piece of furniture made from responsibly harvested wood, but MasayaCo plants 100 trees for each order — and has planted 1.3 million trees to date. Plus they keep 40% of the reforestation projects completely untouched, to ensure the ecosystems have the chance to truly thrive.
The company shares that with the right care, their teak wood pieces can last up to 75 years. Note, though, that the finishes used aren’t disclosed, so if that’s one of your priorities, this might not be the top pick for you.
Price: $675-$1,295
Materials: Teak
Conscious Qualities: Artisan Made-to-Order, Reforestation Projects, FSC-Certified
6. Healthier Homes
Best for: affordable non-toxic bookshelves
With shelving options starting at under $250, Healthier Homes is a more affordable option for finding sustainable, non-toxic bookcases and shelving.
Most of their wood furniture is made from Parawood, rescued from rubber tree farms after the trees stop producing latex. And their wooden bookcases come unfinished, so you can have full control over the color and any chemicals used. (The company also sells zero VOC furniture paint.)
Price: $238 – $2,160
Materials: Repurposed Wood, Metal, Zero VOC Finishes
Conscious Qualities: Repurposed Materials
7. What We Make
Best for: reclaimed wood bookshelves
Illinois-based furniture company What We Make crafts non-toxic bookcases with a VOC-free finish.
The shop offers both modern Scandinavian styles (pictured here) using solid oak and industrial style sustainable bookshelves made with a stainless steel frame and the reclaimed wood salvaged from 100+ year old Midwestern barns.
Price: $2,025 – $5,055
Materials: Oak, Reclaimed Wood
Conscious Qualities: Made-to-Order, Repurposed Material Option, Zero-VOC Finish
8. Greenington
Best for: bamboo bookshelves
Greenington is a furniture company with pieces crafted from sustainably hand-harvested Moso bamboo. Greenington sources mature bamboo — reached in just 5 years — for maximum strength and durability. And because bamboo is technically a grass, not a tree, it regenerates after being cut without any replanting.
The company uses every part of the bamboo culm, for zero waste production, winning the Sustainable Furnishings Council Green Ribbon Award in 2020.
Price: $809 – $2,139
Materials: Moso Bamboo
Conscious Qualities: Zero-Waste Production, Sustainable Materials
9. Crate & Barrel FSC-Certified
Best for: certified responsibly sourced wood shelving
Crate & Barrel’s FSC-Certified collection features bookshelves made with materials like solid oak, mahogany wood, teak, and rattan. And you can find a range of styles and finishes in their collection, from natural oak to espresso and driftwood.
It’s worth noting that the company’s bookshelves do contain veneer and engineered wood as well. There are also select products that are also GREENGUARD certified, but not all of them.
Price: $1,399 – $4,949
Materials: FSC-Certified Wood, Some GREENGUARD Certified Pieces
Conscious Qualities: Natural Materials, Responsibly Sourced
More Guides to Browse:
Sustainable Tables and Coffee Tables to Gather Around
The Best Non-Toxic Furniture Brands for a Healthier Home
Sustainable Storage Furniture: Dressers, Media Consoles, and More
The post 9 Sustainable Bookcases to Showcase Your Latest Reads appeared first on Conscious Life & Style.
Put your feet up and relax with the eco-friendly and non-toxic ottomans, benches, and poufs from these incredible sustainable furniture brands.
What makes an ottoman, pouf, or bench sustainable?
There are a lot of considerations that go into making sustainable furniture. Some brands may meet more of these criteria than others, and some criteria may be more or less important to you.
You might also engage with sustainability differently depending on your lifestyle, budget, aesthetic preferences, among other factors. But here’s a general idea of what to look for:
Look Secondhand
Used ottomans and benches are going to the most sustainable option since these furniture pieces have already been produced! Plus you’re preventing that furniture from heading to a landfill. You could browse an app like OfferUp or check your local Facebook Marketplace.
You can also check secondhand furniture sites like AptDeco and Chairish
Shopping for new sustainably-made ottomans and benches? Check out the following tips:
Eco-Conscious & Durable Materials
With the rise of fast furniture, the quality (and the sustainability) of materials used in furniture has declined. I’m consistently blown away by the incredible condition of so much vintage mid-century modern (1930s-1970s) furniture out there!
A sustainable ottoman (or sustainable bench) would be made durably so it lasts and would be constructed from responsibly sourced materials such as FSC-Certified and/or locally sustainably-harvested wood, recycled fabrics and organic natural fabrics for the upholstery, and non-toxic — ideally zero VOC — finishes. This guide has more non-toxic furniture brands.
Responsibly Made
Look into where the brand is producing their ottomans, benches, and/or poufs. Is it in their own workshop or a nearby production facility? Is it in a fair trade artisan workshop? A brand should have full transparency and traceability of their supply chain.
They also should ensure workers are earning living wages and work in safe environments. (This is where the overlap with non-toxic comes in — when there are toxic chemicals used in furniture, supply chain workers are exposed to these toxins in far greater quantities than consumers.)
Circular Practices
The EPA estimates that 12 million tons of furniture are thrown out annually. Yikes. A brand selling sustainable benches and ottomans would ideally consider the following:
- Quality construction so the furniture lasts a lifetime (or several)! If you’re moving a lot, it’s also worth considering how easy that piece of furniture is to move around and deconstruct/reconstruct if necessary. Though this probably is less of a concern with a smaller piece of furniture like a pouf, bench, or ottoman.
- Repairability. Is that material repairable? Does that brand have replacement parts? Is it a material that could be refinished or reupholstered easily? For example “vegan leather” (typically plastic) is very difficult to keep up or repair.
- Secondhand program or resellability. It would be incredible if the brand had a resale program for their furniture. Not many brands do, though. So you might also just think about if the style and quality of the piece would make it easy to sell again if you do think you might outgrow it.
Where to Find Sustainable Ottomans, Benches, and Poufs
Phew, that was a lot! But don’t worry: we’ve done the hard work of sifting through brands to curate the best options available right now. Check them out!
Note that this guide includes affiliate links, which means we may earn a small commission at no additional cost to you if you make a purchase which helps us continue to run this site. We only feature brands that meet strict standards for sustainability we love, and that we think you’ll love too.
1. Medley
Best for: non-toxic ottomans and poufs
Medley has sustainable poufs, ottomans (including storage ottomans!), and benches handcrafted in the US to the highest quality standards. To back up their claims, Medley has a lifetime warranty on frames, 10-year warranty on fillings, and a 5-year warranty on fabric upholstery. Their benches and ottomans are made from domestically-sourced FSC-certified Alder hardwood and non-toxic fabrics (including GREENGUARD certified fabrics and natural fabrics like cotton and linen.
Conscious Qualities: US-Made, Quality Warranty, Natural Materials
Price Range: $595 – $1,985
Ships: International
2. Savvy Rest
Best for: organic ottoman made with all-natural materials