At first glance, the Yellow-breasted Chat seems to be a mishmash of many bird families: its larger size and stout bill resemble a Scarlet Tanager’s, while its skulking habits and complex vocalizations seem more like those of a thrasher or mockingbird. Taxonomically, this bird was considered an unusual wood warbler in the family Parulidae. However, in 2017, the American Ornithologists Union gave this bird its own family — Icteriidae — based on its unique physical and genetic features. It is considered to be related to the blackbirds and meadowlarks of the Western Hemisphere.
Among birders, the Yellow-breasted Chat is best-known for two features of its behavior: its habit of staying hidden at most times within the thickest vegetation available, and its loud, wild, weird song and flight display. In 1953, ornithologist Arthur Cleveland Bent described the Chat’s song as a “medley of strange sounds, musical and otherwise, catcalls, whistles, and various bird notes coming from points now here, now there in the bushes” — sounds which would “betray the presence of this furtive and elusive clown among birds.” The song is indeed a strange and wonderful mix of cackles, clucks, whistles, and hoots. Only males are known to sing, and they do so from deep inside the densest cover. A male chat may sometimes sound as if he’s laughing at the frustrated birders trying to locate him. (snip-MORE)
And thanks to MDavis for intro’ing this guy, who is great!
The Palm Warbler is unusual among the Western Hemisphere’s wood-warbler family. While the majority of warblers are sexually dimorphic, with males noticeably brighter in the breeding season, the male and female Palm Warbler are nearly identical, and can be impossible to tell apart. Warblers, in general, spend a majority of their time in trees and shrubs, but the Palm Warbler is quite comfortable on the ground. Rather than hopping like their arboreal relatives, these birds take to walking or running. Like other warblers, the Palm Warbler often joins mixed-species flocks outside of the breeding season. However, though most warblers tend to flock up with other arboreal species, the Palm Warbler is just as likely to be found foraging with sparrows along hedgerows and in open weedy fields.
Palm Warblers share another habit more typical of ground-dwelling birds in that they continuously bob their tails. This behavior is also seen in other birds typical of open habitats, including the Spotted Sandpiper and Black Phoebe, where the rate of bobbing is thought to vary with the bird’s level of excitement, and thus plays a role in communication. In many ways, the Palm Warbler behaves more like a sparrow or pipit than a typical wood-warbler — even its monotonous trilled song is remarkably similar to that of a Dark-eyed Junco or Chipping Sparrow. Though perhaps an oddball among its own family, this unique bird has found a niche all its own, somewhere between a sparrow and a warbler. (snip-MORE)
The Three-wattled Bellbird, like other Central and South American bellbirds in the Cotinga family, is a natural history paradox. Breeding males perch on exposed branches and sing one of the loudest songs of any bird, impossible to ignore and audible from more than half a mile away. However, despite this extremely conspicuous breeding season behavior, females and nonbreeding males are notoriously difficult to observe, foraging in the higher levels of the canopy and remaining remarkably silent. As a result, this species has been subject to fascinating and in-depth studies of its song and courtship behavior, but some of the most basic aspects of its natural history are unknown. For instance, only two nests have been recorded, one in 1975 and one in 2012, and no eggs or young have been documented.
But biologists have learned a great deal from studying the Three-wattled Bellbird’s song. The bellbirds belong to a group of perching birds known as the suboscines, which also includes tyrant flycatchers like the Western Kingbird and antbirds, such as the Marsh Antwren. While the “true” songbirds (or oscines) are famous for their song-learning abilities, suboscine songs are classically considered to be completely innate, with no learning taking place. However, the Three-wattled Bellbird shares an important feature with birds that learn their songs: dialects. Birds from Nicaragua sound noticeably different from Costa Rican birds in the Cordillera de Talamanca and the Cordillera de Tilarán, which each host populations with distinct songs. (snip-MORE)
Ollie has endeared himself to some house finches who come here to eat. He’s done this by chasing the squirrel off the feeder they prefer. He doesn’t realize he’s doing favors for the birds; he wants to play with the squirrel, especially zoomies. But, for 2 days in a row, I’ve watched house finches, in pairs, chase a squirrel back in Ollie’s direction by swooping the squirrel. They also are, so far, the only birds who don’t fly up away from this feeder when Ollie goes outside. Even the crows tend to fly into the trees until he comes back inside. So the house finches fascinate me this year. Anyway, here are these about more birds, and a bat, too.
The Yellow-winged Blackbird is a conspicuous species of the Southern Cone of South America, congregating in colonies in marshes during the breeding season, and forming larger flocks in wetlands, grasslands, and agricultural fields the rest of the year. These birds are also extremely vocal, giving a startling variety of calls, including sharp and percussive sounds, clear and musical whistles, and a range of other rattling, chirping, whining, whirring, and gargling vocalizations. Their song in particular makes use of virtuosic trills, robotic whistles, and mechanical whirring or buzzing sounds, coming across as half bird, half sci-fi robot. This iconic song is also the source of one of the Yellow-winged Blackbird’s nicknames, “trile,” and some authors propose it may also be the origin of the name of the country Chile! As if to make the most of their raucous acoustic capacity, the males of an entire colony will sometimes sing together in one big, cacophonous chorus.
In addition to nesting together in the same space, Yellow-winged Blackbirds also synchronize their nesting in time. Most of the females in a colony will lay within several days of each other. As a result, most of the nests in the colony will be on the same timeline, with eggs and nestlings developing at about the same time across the marsh. (snip)
Oregon will soon have a new, dedicated source of conservation funding to support the recovery of struggling bird and wildlife species across the state. House Bill 4134, dubbed 1.25% for Wildlife Bill, passed the Oregon State Senate in February and has now been signed into law by Governor Tina Kotek. American Bird Conservancy (ABC) strongly supported the 1.25% for Wildlife Bill, a proactive measure expected to raise up to $30 million annually for wildlife conservation in the state.
“This is monumental: Oregon has chosen to invest in its wildlife and its future with the passage of this historic law. Habitat restoration, recovery programs, and anti-poaching efforts are just a few of the programs that will be funded by this landmark legislation,” said Hardy Kern, ABC’s Director of Government Relations.
The Act will create a sustainable funding source dedicated to conserving imperiled species like the Marbled Murrelet, a seabird that nests in mature and old-growth forests in the state. Nest predation by jays and ravens contributes to the species’ declining population. Actions that could boost nesting success, such as campground cleanup efforts to reduce jay and raven numbers near sensitive nesting sites, are currently unfunded, but could benefit from the revenue generated by the newly signed law. (snip-MORE)
The Eastern Warbling Vireo is a quintessential species of spring and summer across much of eastern North America. This rather drab bird is often hard to spot, hidden up high among the leaves of tall deciduous trees, but its buoyant, easygoing song is hard to miss. One of the most persistent singers through summer, this vireo’s song is considered by many ornithologists and naturalists to be among the most beautiful in its range. Males do most of the singing, but females sing as well — an unusual trait among songbirds in temperate regions. Even more unusual, these birds will even sing while sitting on their nests!
Unfortunately for the vireos, Brown-headed Cowbirds seem to cue in on this species’ habit of singing from the nest. Cowbirds are “brood parasites,” laying their own eggs in the nests of other species, often resulting in the death of some or all of the host’s young. Female cowbirds are quite crafty, even using the movements of parent birds to determine the location of a nest; the more often a parent uses the same paths to and from the nest, the more likely cowbirds are to find it. However, Eastern Warbling Vireos are remarkably efficient at removing cowbird eggs, often puncturing the offending eggs with their bills before discarding them. Studies of this behavior showed that these vireos seem to recognize cowbird eggs by differences in the pattern of speckles on the shell — and get rid of them 90-100 percent of the time! (snip-MORE-2 calls and a song!)
The Least Flycatcher is a small but fierce bird of North American forests, known for its fearlessness in confronting birds much larger than itself, including formidable foes like Blue Jays and even hawks. They often share habitat and compete with American Redstarts, a fly-catching warbler, which they exclude from the best habitat through repeated chases and attacks. Of course, Least Flycatchers defend their territories from their neighbors as well.
However, despite their intense territoriality, these flycatchers are widely known to form dense clusters of breeding territories, even in areas with plenty of suitable habitat. Interestingly, the males closest to the center of a cluster are the healthiest, and the first to find mates. Conversely, birds that don’t join a cluster usually do not mate at all that season. While other factors may contribute to this pattern, the main influence seems to be that it facilitates birds mating with their neighbors in addition to their social mate.
Least Flycatchers are socially monogamous, pairing with a single bird during the breeding season with whom they defend a territory and raise young. But these birds are also quite promiscuous. More often than not, the nest of a mated pair will have at least one nestling sired by another male. “Spreading the love” in this way benefits both males and females — females end up with more genetic diversity in their nests, while males don’t have all their eggs in one “basket,” in case a nest fails. This breeding system, where territories are clustered together, females seek matings outside of the pair, and paired males compete for each other’s mates, has been described as a “hidden lek.” In some ways, this system is quite similar to the communal display areas, or leks, where birds like Lesser Prairie-Chicken and Greater Sage-Grouse defend small arenas to display for females.
One big difference between a classic lek and the so-called “hidden lek” of Least Flycatchers is that both the male and female in a pair are looking to mate with other birds without their own mate knowing about it. Also, the displays are a bit less dramatic. Rather than elaborate plumages, dances, and bizarre methods of sound production, these drab males instead opt to sing the same monotonous two-note song several thousand times an hour.
Threats
Though fairly common in appropriate habitat, Least Flycatcher populations have been declining since the 1970s. There are now a little over half as many Least Flycatchers as there once were. As such, Partners in Flight lists them as a Common Bird in Steep Decline. More research is needed to better understand the causes of this decline, but factors affecting the structure and health of forests probably play an important role. (snip)
The Speckled Tanager is a preternaturally beautiful bird, even among the other stunning Central and South American tanagers of the family Thraupidae. The black speckles that give this species its name come from black feathers with brightly colored edges, giving the impression of scales over the bird’s body. The edges blend together to create a palette of iridescent yellow-green and green-blue over the body of the bird.
Striking as these patterns and hues may be, they actually provide good camouflage for this bird up in the green, backlit forest canopies where it spends most of its time. The tanager’s speckles, like the spots on a jaguar or the camo pattern on a hunter’s jacket, are a form of disruptive patterning, a camouflage strategy that breaks up or obscures an animal’s outline, allowing it to blend with its background. Up among the bright green leaves, these birds can easily go unseen. Up close, however, their plumage is hard to ignore.
Threats
Birds around the world are declining, and many of them face urgent threats. The Speckled Tanager lives primarily in old-growth forest, and healthy populations depend on the persistence of forests throughout their range in Central and South America. Though not considered a species of conservation concern, this bird is declining, and deforestation is one likely cause. (snip-MORE)
Aptly named for its striking green plumage, the Northern Emerald-Toucanet is actually quite camouflaged in the leafy forests where it makes its home. With its tropical take on countershading — darker green on the back and wings, lighter yellow-green below — this bird beautifully matches the color palette of forest leaves, whether seen from above or from below. With its accents of chestnut, blue, and white, and a large black and yellow bill, this pigeon-sized bird is a true beauty.
Similar to other toucans, Northern Emerald-Toucanets eat mostly fruit, capitalizing on the wide diversity of fruit-bearing trees in the humid forests of their home in Central America. These birds mostly swallow their food whole, including some larger-seeded fruits, which they repeatedly regurgitate and swallow until the flesh is consumed. Whether by regurgitation or defecation, these birds spread the seeds of their food trees throughout the forest. Many tropical trees have evolved to bear fruit specifically for this purpose, taking advantage of birds’ wings to spread their seeds far and wide. In fact, the process of moving through the digestive tract of an animal actually helps the seeds of many of these trees to germinate. In effect, these toucanets, along with a cohort of other fruit-eating birds and mammals, are gardeners of their own food forests. (snip)
Bird Gallery
The Northern Emerald-Toucanet is indeed a beautiful, vibrant green, top and bottom, with the back a deeper, darker hue and the underparts lighter and slightly yellowish. The long tail is iridescent blue and green, with a rusty or chestnut tip matched by the vent feathers beneath the tail. The eight subspecies across its geographic range vary in the coloration of the throat, either blue or white, and the bill. In all subspecies, the lower mandible is black. The upper mandible has some black as well, but may be almost entirely yellow. Some subspecies also have a reddish to brown patch near the nostrils.
Any season of the year, the Mountain Chickadee is a delight to encounter. In their breeding season, they form neighborhoods of adjacent territories in the conifer forests of western Canada and the U.S., which ring in the early spring dawn with dozens of cheerful whistled songs. In winter, groups of Mountain Chickadees are joined by other birds — nuthatches, woodpeckers, creepers, kinglets — to form large dispersed flocks that move together through the forest, following the chickadees’ namesake rallying call.
Mountain Chickadees are social birds, living in groups of up to three mated pairs and juveniles of the last breeding cycle for most of the year, only breaking off into territorial pairs for the breeding season. In fact, while we tend to think of the breeding season as the time when mates are chosen and territories are established, most of this actually occurs in the winter. This is when the social hierarchy is solidified between the individuals in a group, and come spring, the dominant birds will reliably take the best territories. While boundaries may shift somewhat, the same birds will usually hold the same territories year after year. Pair bonds are formed during the winter as well, and usually last for as long as both birds survive.
Mountain Chickadees are well-known for their caching behavior. To survive harsh mountain winters, these chickadees hide surplus food throughout their winter territories, a behavior known as “scatter hoarding.” A single chickadee may cache tens of thousands of food items — insects, conifer seeds, or goodies from bird feeders — over the course of a year. They may cache food any time they have extra, and may recover caches any time of the year, but spend the most time caching in the fall, and the most time eating from them in the winter. In fact, studies have shown that Mountain Chickadees living in harsher winter environments have better spatial memory and are more adept at remembering where they have cached food. Unsurprisingly, these birds also survive longer. (snip-MORE)
More than most, the Black-billed Magpie is a bird that inspires strong emotions in humans. A familiar species across much of the West, the Black-billed Magpie is intelligent, adaptable, and bold. For these attributes, they are both admired and loathed. While considered an annoyance or an inconvenience by some, they are also highly social and will occasionally leave “gifts” for humans who feed them.
Like many other intelligent and opportunistic corvids, magpies will take advantage of whatever resources they can. As such, the Black-billed Magpie is probably best known as a scavenger of garbage, carrion, and poorly guarded picnics. This has given these birds a bad reputation, with many regarding them as pests. A common folk belief is that magpies will wound cows to eat their flesh or drink their blood. Magpies will, in fact, stand on the backs of cows to probe and peck. However, the goal is typically not to eat the cow itself, but the parasites on the cow, such as ticks, that are doing just that. Cows are not the only beneficiaries of this behavior — magpies will eat ticks off of other large mammals, including bison, moose, elk, and deer.
The Black-billed Magpie holds a special place in mythology as well. Magpies are recognized as messengers in numerous Indigenous cultures of North America, sometimes to the aid of humans, sometimes to carry news to the Creator. One widespread story tells of how the magpie, for helping humans and birds alike, was given the honor of “wearing the rainbow” — a reference to the iridescent sheen on this bird’s wings and tail. (snip-MORE)
Scottie's Playtime 