Book Note: The Young Birder's Guide to Birds of North America

Birder and writer Bill Thompson III has produced a new paperback edition of The Young Birder's Guide to Birds of North America. This book builds on his 2008 book, The Young Birder's Guide to Birds of Eastern North America, which I reviewed at the time. These guides are aimed to engage young birders and help them learn the most common bird species before using a standard guide that might overwhelm them with information. The species accounts are less condensed than a standard field guide and focus on how to find and identify each species, along with unusual facts about their natural history. The new edition follows the same format as the 2008 edition, but it adds 100 western species to broaden the book's appeal.

Mothing for National Moth Week

On Wednesday I put out my black light in the backyard for a few hours to attract moths for National Moth Week. I am still in the process of identifying them, which is still a slow process even with the new Peterson guide. In the meantime, here are a few of the macromoths. The one above is one of two Yellow-striped Armyworms (Spodoptera ornithogalli) that came to the light. Instead of landing on the sheet, this one perched on a lattice fence nearby.

This is a Large Wainscot (Rhizedra lutosa), a member of the family Noctuidae. Large Wainscots were introduced to North America (first recorded in 1988) and feed on Phragmites australis.

This is another noctuid called The White-Speck or Armyworm (Mythimna unipuncta).

I believe this is a Linda Wainscot (Leucania linda), which is closely related to the previous species.

This is a Green Cloverworm Moth (Hypena scabra), an extremely common moth here.

This is a Black Fungus Moth (Metalectra tantillus).

This Celery Looper (Anagrapha falcifera) was reluctant to settle down on the sheet and kept fluttering and disturbing the other moths.

Finally, here is a Common Pug (Eupithecia miserulata). The Eupithecia moths all look very similar so that it can be hard to tell one from another, but the genus's shape is very distinctive.

Loose Feathers #353

White-crowned Sparrow / Photo by Roy Lowe (USFWS)

Birds and birding news

• A study of Wood Thrushes shows that individual birds have surprisingly consistent migration times. Migratory birds time their migrations to arrive at migratory stopovers and their breeding grounds at optimal times for food availability. This means that climate change may throw off their migration schedule in the future. 
• Piping Plover numbers are rising on Cape Cod thanks to beach closures that allow nesting to take place without human interference.
• Even when an endangered bird is listed, the US Fish and Wildlife Service may not designate sufficient critical habitat.
• Brown Pelicans have been attacking a Common Murre colony at Yaquina Head in Oregon, leading to the deaths of hundreds of murres. The pelicans either eat the chicks or shake them until they regurgitate their food. The attacks by the pelicans have encouraged further attacks by gulls and crows once the parent murres have been chased from the nest.
• Hummingbirds are able to fly in the rain by changing their flight posture and beating their wings more quickly.
• Breeding populations of wading birds in the UK continue to decline.
• While much of the US is mired in drought, the UK has experienced an unusually cold and wet summer, which means a bad breeding season for Common Swifts.
• A recent study used the fable of a crow dropping stones into a water jar to explore cognitive differences between crows and young children.
• A recent study argues that Northern Spotted Owls would benefit from more active fire management.
• Past Olympics included pigeon shooting — real pigeons, not clay pigeons.

Nature blogging

• The Smaller Majority: My rainforest portrait studio 
• 10,000 Birds: AOU 53rd supplement: Highlights and near misses
• 10,000 Birds: Plovers, they’re harder than you think.
• BugBlog: Moth bat detectors and the evolution of butterflies
• BugBlog: Some day-flying moths
• Sibley Guides: Why are Yellowlegs hard to identify?
• Audubon Guides: The Color of Poison
• Not Exactly Rocket Science: Revising the polar bear’s evolutionary past… again
• Audubon Guides: Did You Know? Moth Facts
• Bug Eric:  Wasp Wednesday: Not Wasp VIII
• Wild About Ants: Chocolate and Ants: An Experiment

Environment and biodiversity

• This month, nearly the entire Greenland ice sheet experienced some degree of melting. Such widespread melting is highly unusual; in most summers only about half of the ice sheet's surface area experiences melting.
• The World Wildlife Fund issued a scorecard for 23 countries based on their compliance with CITES.
• Images from 40 years of LANDSAT show the disappearance of the Aral Sea, one of the worst manmade environmental disasters.
• Despite ample warnings about the toxicity of the Anacostia River, many DC residents continue to fish there and consume fish from the river.
• You can watch brown (i.e., grizzly) bears try to catch salmon in Alaska's Brooks River on a live webcam.
• Monarch butterflies fly better when they have darker wings.
• There is talk of buildings a CSA on top of a former Superfund site in Portland.

National Moth Week Starting Today

This week, July 23-29, is the first ever National Moth Week in North America. Moths are widespread and diverse insects, capable of adapting to many niches and with significant ecological and economic effects. They range in size from micromoths barely bigger than a pin head to giant silkworm moths whose wingspans may measure several inches across. Most are patterned with shades of brown and gray, but some are brightly colored, and even moths with camouflaged forewings may conceal dazzling hindwings underneath. Since moths can be found anywhere and studied without a lot of special equipment, it makes them a natural subject for a citizen science project. Indeed, a National Moth Night has taken place in the United Kingdom for several years.

Anyone can participate in National Moth Week by attending a scheduled public event or by looking for moths themselves. There are currently events scheduled in 20 countries and 49 U.S. states; check the map at the link to find events near you. To study moths on your own, register your location and then leave a light on outdoors at night. Ideally, this would be a bulb that shines into the UV spectrum, like a mercury vapor lamp or blacklight, but even regular bulbs will attract some moths. The light should be near a landing zone, like a wall or a light-colored sheet. Check periodically to record what moths have come to the light and photograph any interesting ones for identification. Here are some suggestions for submitting data. Three websites have set up data collection projects for National Moth Week.

Loose Feathers #352

Common Yellowthroat feeding Brown-headed Cowbirds / Photo by Bill Thompson (USFWS)

News about birds and birding

• In addition to being one of the hottest and driest summers on record in the U.S., summer 2012 has been an irruption year for Dickcissels, which are being recorded well outside their usual range.
• Is Jonathan Franzen the world's most annoying birdwatcher? Birdchick and the Birdist say no. (via 10,000 Birds)
• A Traffic investigation charges that the Solomon Islands is a hub for illegal trade in captive wild birds, including numerous endangered species.
• According to a study, European Storm-Petrels are able to smell whether another bird would be a suitable mate.
• Over 500 dead Magellanic Penguins have washed ashore in Brazil over the past few weeks; the cause is still under investigation. 
• Here are some photos of American Flamingoes (Phoenicopterus ruber) in the Bahamas.
• The US Fish and Wildlife Service has doubled the designated critical habitat for the Western Snowy Plover.
• A British ecologist has been studying the nesting guillemots on the island of Skomer for the past 40 years. In that time the guillemot population on Skomer has recovered from 2,000 to 20,0o0 individuals, which is still short of the estimated 100,000 guillemots that bred there historically.
• The UK is having a terrible summer, but the rare Ospreys at one nature preserve are doing well.

Nature blogging

• Sibley Guides: Birds slow to react to predators because… the sun gets in their eyes
• Audubon Guides: Exception to the Rule – Woodpeckers
• Not Exactly Rocket Science: Sparrows sound sexier in the cold
• Bird Ecology Study Group: Ficus consociata: 1. Orange-bellied Flowerpecker
• Kymry: Catbirds, Spring Courtship Duet
• Wild About Ants: Chocolate, Chocolate Products, and Ants
• Insect Museum: Insect Minute – What is the biggest insect?
• Alien Plantation: [Insert Rodents of Unusual Size Joke Here]

Environment and biodiversity

• Bill McKibben lays out some hard numbers about climate change and its likely effects.
• A new study lends support to the idea that carbon dioxide could be sequestered by dumping iron filings in the ocean. The filings would encourage algae blooms, and when they died, the algae would sink deep into the ocean, taking the carbon with them. However, greenhouse gas emissions would still need to be reduced, even with this geoengineering method.
• The effects of climate change are not necessarily straightforward and vary from one location to another.
• Some mosses reproduce more effectively when springtails help transport sperm from males to females. 
• Giant Swallowtails have been discovered breeding in Montréal, far north of their historic range.
• Invasivores are encouraging anglers to catch and eat invasive snakehead fish.
• With a growing population that depends on groundwater, Maryland has had to drill deeper for its drinking water. New analysis shows that those deeper aquifers were filled between ten thousand and two million years ago, and thus are unlikely to be replenished anytime soon.
• Long mating sessions leave dumpling squid exhausted and more vulnerable to predation.
• New York City is considering proposals to create a green roof for urban farming on top of the Hunts Point food distribution center in the Bronx.
• An iceberg twice the size of Manhattan broke off the Petermann glacier in Greenland.
• Woodbridge High School students will help with habitat restoration at a former industrial site along the Raritan River as part of an EPA program.
• Newark and New Brunswick both broke high temperature records this week as the historically hot summer continues.
• EarthFix reports on how various rivers in the Pacific Northwest still fail to meet the standards laid out in the Clean Water Act.