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Scientific Articles
Invasion dynamics of the European Collared-Dove in North America are explained by combined effects of habitat and climateMay 1, 2024
Global biodiversity is increasingly threatened by the spread of invasive species. Understanding the mechanisms influencing the initial colonization and persistence of invaders is therefore needed if conservation actions are to prevent new invasions or strive to slow their spread. The Eurasian Collared-Dove (Streptopelia decaocto, EUCO) is one of the most successful avian invasive species in […]
Unfamiliarity generates costly aggression in interspecific avian dominance hierarchiesJanuary 10, 2024
Dominance hierarchies often form between species, especially at common feeding locations. Yet, relative to work focused on the factors that maintain stable dominance hierarchies within species, large-scale analyses of interspecific dominance hierarchies have been comparatively rare. Given that interspecific behavioral interference mediates access to resources, these dominance hierarchies likely play an important and understudied role […]
Participant retention in a continental-scale citizen science project increases with the diversity of species detectedJuly 13, 2023
Sustaining the efforts of volunteers is a challenge facing citizen science programs. Research on volunteer management shows that a diversity of factors may be correlated with sustained volunteerism. In the present article, we explore retention of participants in a large-scale citizen science project. We focus on Project FeederWatch, a bird-monitoring program. Using data from 17,991 […]
Drivers of an Ecologically-Relevant Summer North American DipoleJanuary 3, 2023
The teleconnection mechanisms associated with midlatitude climate dipoles are of high interest because of their potential broad impacts on ecological patterns and processes. A prominent example attracting increasing research interest is a summer (June-August) North American dipole (NAD), which drives continental-scale bird irruptions in the Boreal Forest (semiperiodic movements of large numbers of individual birds). […]
Both morphological and behavioral traits predict interspecific social dominance in birdsOctober 5, 2022
Interspecific dominance interactions have consequences for behavior, ecology, and the stability of species coexistence. Determinants of the outcomes of these interspecific interactions are therefore of great interest. However, few large-scale comparative works have demarcated the potential behavioral and morphological traits that explain dominance between species. To delineate which traits may influence species dominance, we rely […]
Antipredator behaviors in urban settings: Ecological experimentation powered by citizen scienceSeptember 14, 2022
1. Animal behaviors are often modified in urban settings due to changes in species assemblages and interactions. The ability of prey to respond to a predator is a critical behavior, but urban populations may experience altered predation pressure, food supplementation, and other human-mediated disturbances that modify their responsiveness to predation risk and promote habituation. 2. […]
The effect of sociality on competitive interactions among birdsAugust 3, 2022
During the 2016–17 season, FeederWatch began inviting project participants to report behavioral interactions between birds that they observed during their counts. One of the interactions participants report is displacement: when one bird tries to take over a resource (food or perch) that is occupied by another bird. Researchers Ilias Berberi and Roslyn Dakin of Carleton […]
Host population dynamics in the face of an evolving pathogenApril 7, 2021
Interactions between hosts and pathogens are dynamic at both ecological and evolutionary levels. In the resultant ‘eco‐evolutionary dynamics’ ecological and evolutionary processes affect each other. For example, the house finch Haemorhous mexicanus and its recently emerged pathogen, the bacterium Mycoplasma gallisepticum, form a system in which evidence suggests that changes in bacterial virulence through time […]
Blog Posts
Vos émotions nous intéressent!November 29, 2023
Des éléments sont ajoutés à l’information fournie par les participants au Projet FeederWatch chaque fois qu’ils font la saisie de leurs données. Les réponses fournies renseignent l’équipe de chercheurs sur les relations entre les humains et les oiseaux. Il n’est pas obligatoire de répondre à ces nouvelles questions. Par Christy Pototsky, Virginia Tech Jusqu’à présent […]
Projet FeederWatch – Entrez de nouveaux types de donnéesSeptember 14, 2023
|Sittelle à poitrine rousse Photo : Bill Schneider/Macaulay Library | L’équipe du Projet FeederWatch est ravie d’annoncer que, grâce à une subvention, les participants peuvent désormais noter plusieurs types d’informations supplémentaires pendant leurs dénombrements habituels. En plus des différentes espèces d’oiseaux que vous voyez et de leurs interactions, vous pouvez maintenant enregistrer les types de mammifères […]
Participant Photos
Aux mangeoires.November 6, 2022
Temps très doux pour la saison, retardataires aux mangeoires
Learn Articles
What’s For Dinner? Sharp-shinned and Cooper’s Hawks Pick Different FoodsSeptember 7, 2022
By Kathi Borgmann Watching chickadees and finches jostle at your feeder provides countless hours of entertainment. And every once in a while, a Cooper’s Hawk or a Sharp-shinned Hawk might fly in and stir things up. These two bird-eating raptors co-occur throughout much of North America, but given their similarities, a common question often emerges—how […]
You don’t need feeders to FeederWatchSeptember 6, 2022
Are feeders necessary in order to FeederWatch? It seems obvious, right–it’s in the name! Project FeederWatch. However, it may come as a surprise to many that bird feeders are not required for participation in Project FeederWatch, and participating without feeders is an incredibly valuable contribution in its own right. If you prefer not to offer […]
BirdSpotter 2020-21
Action at the FeederMarch 5, 2021
Steller’s JayMarch 5, 2021
peanut loving
European RollerMarch 5, 2021
European Roller experiencing the heat at Etosha National Park.
Male Painted Bunting (Passerina ciris) hiding Ixora shrubs, Stuart, Florida, USAMarch 4, 2021
A beautiful male Painted Bunting hiding in our shrubs making sure the feeder was clear before flying up to it. We look forward to hosting him and his lady friends in our yard every winter.
A Trio of WaxwingsMarch 4, 2021
This was my first time going bird spotting, and I was excited to take a closer look at the native and migratory bird species in the Houston area. The Cedar Waxwings’ beautiful colors and high pitched calls really caught my eye. I enjoyed the hundreds of Cedar Waxwings gathered together, socializing, and eating berries. As […]
Do Not DisturbMarch 4, 2021
This photo was taken in Melbourne Australia while walking in a nature preserve.
Brilliant BluebirdMarch 4, 2021
The blue from him just seems to glow among the grayness of the winter trees.
Braving Texas SnowMarch 4, 2021
Two pair of bluebirds visited during our recent snow in Conroe.
Striking a poseMarch 4, 2021
This bluebird was flying around feasting on berries.
Male Painted BuntingMarch 4, 2021
Male Painted Bunting resting in the dormant night blooming jasmine.
Fueling up on a cold, blustery winter morning!March 4, 2021
They are loud and bossy . . . and so beautiful!
Male House FinchMarch 4, 2021
Our first sighting of a House Finch this winter. Just so beautiful. Loved his feather details.
Painted Bunting BeautyMarch 4, 2021
This beauty waits until I’ve gone inside before he eats at the feeder. He is usually flocked by several greenies.
Monk Parrots as NeighborsMarch 4, 2021
Monk Parrots have been stopping by my feeders a few blocks from their nest for months.
Cardinal SunsetMarch 4, 2021
Cedar Waxwing – the business end!March 4, 2021
21 0225 back yard after a snowstorm!
Father buntingMarch 4, 2021
Winter visitor
Male Painted Bunting in early MorningMarch 4, 2021
Flicker on sumac branchesMarch 4, 2021
Robins wintering FloridaMarch 4, 2021
Literally dozens of robins invade the yard as they flock south for the winter
Male Painted BuntingMarch 4, 2021
While walking along a lake located at the Rich Grissom nature area in Viera, FL. I came across this male Painted Bunting searching for and eating seeds, This was just after a heavy rain storm, the sky was still very overcast and the light very diffused which made the colors really stand out. I used […]
Robin Red BreastMarch 4, 2021
Hey BeautifulMarch 4, 2021
I sighted this single Green Magpie with a flock of white throated laughing thrushes who had come to take a bath in the stream!
Three little (love) birds!March 4, 2021
Green JayMarch 4, 2021
Green Jay taken at Laguna Atascosa
Painted BuntingMarch 4, 2021
Taken during June out of kitchen window
Mellow YellowMarch 4, 2021
We love our Pine Warblers! And they love our many Loblolly Pines…almost as much as they love the Bark Butter Bits.
Outdoor Dining in Saranac LakeMarch 4, 2021
Dozens of Pine Grosbeaks often visit for a few weeks in early winter staying until they have eaten all the leftover fruit. These birds are almost oblivious to your presence as they feast making it easy to get great photos. Taken with Canon EF 100-400mm 1:4.5-5.6 L IS II USM lens, 1.4x teleconverter, and 6D […]
Snowy CardinalMarch 4, 2021
Hummingbird Hello!March 4, 2021
Anna’s Hummingbird flashing their colors at Martin Luther King Jr. Shoreline in Oakland, California.
Variable SunbirdMarch 4, 2021
This pretty bird was in the bushes at our hotel in Arusha. I was attempting to photograph a masked weaver and this bird popped out of the bushes instead.
‘Why…hello!’March 4, 2021
Blue grey tanager PanamaMarch 4, 2021
Leusitic CardinalMarch 4, 2021
Backyard capture in snow.
Lovebird InvasionMarch 4, 2021
In December 2020 an unusually large flock of “Peach-faced” (a.k.a Rosey-Faced) Lovebirds showed up in my yard.
Rainbow LorikeetMarch 4, 2021
Female Cardinal in bright early morning light!March 4, 2021
If you can shoot the female cardinals from slightly underneath them, when the light is just right it illuminates the red on the underside of their wings. This particular cardinal was also a bit more “green” than many of the others and the light simply accentuated that “greenness” as well.
The Accidental TravelerMarch 4, 2021
Iridescent BlackstarMarch 4, 2021
Although European starlings are probably the backyard bird that gets the least love, I’m always dazzled by their iridescent colors and zany antics.
Green Jay in FlightMarch 4, 2021
Green Jay captured flying away. Picture taken on the first sunny day following a week of record cold in Texas and lots of snow. Was not sure if these birds would stick around or not.
Stoppin For Some SuetMarch 4, 2021
I designed a suet post specifically for woodpeckers. It gives them the sturdy support they need while feeding. I have frequent visitors from the Red Bellied, Downy, Hairy, Red Headed, and Pileated.
Cardinal in the BlossomsMarch 4, 2021
Colorful BathMarch 4, 2021
The Not So Green, Green HeronMarch 4, 2021
I see you!March 4, 2021
Was fortunate to get close to this male Black-throated Blue Warbler in early Spring. They have the darkest eyes that blend in with their black feathered throats and beautiful blue feathers.
Picture perch-fectMarch 4, 2021
Captured this Green bee-eater during our family vacation during the hot summer to Jim Corbett park.
Cross Country SkiingMarch 4, 2021
I was cross country skiing in Evangola, a New York State Park, when I came across this Blue Bird contemplating his next shot. First Blue Bird I have seen during winter This was on January 2, 2021.
Lorikeet glareMarch 4, 2021
Face off in an adapted urban niche.
MotmotMarch 4, 2021
Indian Pitta – A Color BombMarch 4, 2021
Taking on more than you can chewMarch 4, 2021
While taking photos of this Vermillion Flycatcher beating this roach against the branch, trying to soften it up for eating, it dropped out of his beak. I just kept shooting and managed to get this image.
Traveling throughMarch 4, 2021
Colorful House FinchMarch 4, 2021
With several back to back snow storms the feeders in the back yard have very busy and our main dinners have been these house finches which i’ve really enjoyed watching and photographing this year. There has been so many different colors of finches it seems but this finch with bright red has been one of […]
Mr. Wodu strikes a pose….March 4, 2021
A beautiful bird, first of the season, fully ready to be photographed.
Red-headed barbetMarch 4, 2021
I shot this picture on Montezuma rain forest in Colombia.
Feasting on FlowersMarch 4, 2021
This rainbow lorikeet is feasting on the flowers of the umbrella tree in my backyard.
Some colorMarch 4, 2021
Love birds in ScottsdaleMarch 4, 2021
Love birds on a cactus.
posandoMarch 4, 2021
es un martín pescador verde, que posó para mi cámara.
Eastern BluebirdMarch 4, 2021
An Eastern Bluebird in our yard perched on a feeder bracket. October
Cold breakfastMarch 4, 2021
Beautiful Northern Flicker ground feedingMarch 4, 2021
Northern FLicker feeding on the ground in February bringing some nice color to the winterscape.
Florida Scrub JayMarch 4, 2021
Birds reside in Lyonia Preserve
Our neighborhood Scarlett Macaws!March 4, 2021
We often see Scarlett Macaws flying over our house, traveling from the mountains to the Tarcoles River and back. Now that it is nesting season, I was thrilled to see them in a nearby tree.
On safariMarch 4, 2021
Lilac breasted roller
Warbler SongMarch 4, 2021
Color on a dreary dayMarch 4, 2021
I take dozens of Bluebird photos, always in bright sunshine. But when he landed in the yard on a dreary, rainy day his amazing blue feathers brought brightness to a rather dull day!
Lunch time!March 4, 2021
One of the bluebirds I spend the summer watching at the cavity nesting trail in Prince Gallitzin State Park. One of my favorite past times.
Mr. RobinMarch 4, 2021
Beautiful day beautiful bird
Cardinal in the SunMarch 4, 2021
A cardinal enjoying the the afternoon sun.
Native Plant Refuge for Eastern BluebirdsMarch 4, 2021
Native plant seeds, fruits and berries are a critical late winter resource for birds.
I am Grackle. I am here.March 4, 2021
This was part of the first wave of Grackles that passed through on their way to their summer location last week.
Great Blue HetonMarch 4, 2021
Great Blue Heron
The Little GemMarch 4, 2021
I was able to get a photo of this little gem, thanks to the kind woman, Kay, who had it in her made-for-birds-yard. I was in awe, but still able to capture a few photos.
Painted BuntingMarch 4, 2021
Painted bunting standing proudMarch 4, 2021
A Purple GallinuleMarch 4, 2021
A Purple Gallinule uses his very large feet to wade through the shallow water looking for the flowers that he loves to eat.
Autumn surpriseMarch 4, 2021
my first Cape May Warbler sighting.
Elegant TrogonMarch 4, 2021
This spotting was a chance of a lifetime for me. I am new at birding, though a senior in age. My son got me started.
Macaws in LoveMarch 4, 2021
Reporting for guard duty.March 4, 2021
The Rainbow StarMarch 4, 2021
Eastern Screech Owl in a Barred Owl boxMarch 4, 2021
Darius after Darius Rucker of Hootie and the Blowfish.
Lost BoysMarch 4, 2021
On FireMarch 4, 2021
Northern ShovelerMarch 4, 2021
Winter with a Baltimore Oriole.March 4, 2021
The Baltimore Orioles have been coming to our feeders in Tallahassee, Fl for about 4 years in a row. Both the males and females are here. Our record for Orioles at the feeder is 10 at one time. They will also eat seeds and meal worms!