thenatsdorf:Virtual BFFs.

by cnkguy
thenatsdorf:Virtual BFFs.

A post shared by Banana Bird (BB) (@thebananabird) on Aug 14, 2016 at 8:23pm PDT

thenatsdorf:

Virtual BFFs.

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motherofbirds: My birds are so messy… 😉

by cnkguy
motherofbirds: My birds are so messy… 😉

motherofbirds:

My birds are so messy… 😉

Source: Learn about Canaries and Budgies plus find more info about Budgie food and Canary Food. BIRDS and BIRD PICTURES Birds are the Best


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Seabirds Let Their Mates Know When They’re Tired and Need a Break

by cnkguy
Seabirds Let Their Mates Know When They’re Tired and Need a Break
Common Murre by Linda TakahashiA Common Murre at a nest. Photo by Linda Takahashi.

Editor’s note: The following research summary describes a new article in The Auk: Ornithological Advances, the journal of The American Ornithologists’ Union, and was provided by the Central Ornithology Publication Office.

For species where both parents work together to raise their offspring, cooperation is key—it’s as true for birds as it is for us. A new study from The Auk: Ornithological Advances shows how pairs of Common Murres update each other on their condition so that when one partner needs a break, the other can pick up the slack.

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Common Murre parents trade duties throughout the day—one stays at the nest while the other leaves to forage, hopefully coming back with a fish for the chick. Because brooding the chick requires much less energy than foraging, staying at the nest is preferable for a bird that’s in poor condition. Linda Takahashi, Anne Storey, and Carolyn Walsh of Newfoundland’s Memorial University, along with Sabina Wilhelm of the Canadian Wildlife Service, studied the “turn-taking ceremony” that parents perform when they switch places. They found that the time they spend preening each other provides a way for the two birds to exchange information about how they’re doing, so that if one is in poor shape the other can compensate.

The researchers observed 16 pairs of murres with chicks on an island off the coast of Newfoundland in summer 2009, recording their behavior when parents switched duties at the nest and capturing the birds to check their body condition. Their results show that these “nest relief” interactions take longer when one partner is especially low in body mass, suggesting that when brooders withhold preening and stall their departure, they’re letting their mates know that they need more time to rest; the returning mate can then compensate by going off to forage again rather than trading places immediately. Similarly, the brooding mate might let a struggling returner take over take over at the nest even if they haven’t brought back a fish.

“We had been doing murre field work for years in Witless Bay studying reproductive and parental behavior, and we became intrigued with the variation that we saw among pairs in their nest relief behaviors,” says Walsh. “Some nest reliefs were short and businesslike, while other nest reliefs seemed to involve a lot of interaction between the mates, and it took a long time for the mates to exchange brooding duty. When Linda Takahashi came to Memorial University as a master’s degree student, we decided that her project should focus on getting the details about this very interesting variation in murre nest relief behaviors.”

A pair of Common Murre by Loch Kilpatrick/Macaulay LibraryA pair of Common Murre swim off the coast of California. Photo by Loch Kilpatrick/Macaulay Library.

“The roles of avian pair members have been much studied in terms of energy investment and food delivery, but we are accustomed to thinking of these problems in terms of evolutionary tradeoffs. The ways in which contributions are actually negotiated within individual pairs has, until recently, been largely overlooked,” according to longtime seabird researcher Tony Gaston of Environment Canada. “Linda Takahashi’s paper addresses this deficiency, and this is a field which promises to open up additional avenues of research on within-pair communication.”

About the journal: The Auk: Ornithological Advances is a peer-reviewed, international journal of ornithology that began in 1884 as the official publication of the American Ornithologists’ Union, which merged with the Cooper Ornithological Society in 2016 to form the American Ornithological Society. In 2009, The Auk was honored as one of the 100 most influential journals of biology and medicine over the past 100 years.

Reference

Linda S. Takahashi, Anne E. Storey, Sabina I. Wilhelm, and Carolyn J. Walsh. 2017. Turn-taking ceremonies in a colonial seabird: Does behavioral variation signal individual condition? The Auk 134(3): 530-541.

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Global Big Day 2017

by cnkguy
Global Big Day 2017

Cornell Lab
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Support the Sapsuckers’ birding marathon for conservation

On May 13, 2017, the Cornell Lab of Ornithology’s birding Dream Team, the Sapsuckers, will reach for an audacious goal: finding 300 bird species in just 24 hours – and raising $475,000. Can they do it?!

This year, for Big Day, they will be heading to the Yucatán Peninsula, one of the world’s most stunning and important areas for birds.

In order to cover the phenomenal bird diversity there, they will be dividing into three teams for the first time ever: Team Belize, Team Guatemala, and Team Mexico. All three teams will be joining forces in a quest to find the most bird species and raise $475,000 for conservation.

Will you help Team Belize, Team Guatemala, and Team Mexico by pledging for every bird species they find?

After Big Day, we’ll share with you the results of Team Sapsucker’s efforts and ask you to fulfill your pledged gift. For example, if you pledge $0.25 today and Team Sapsucker meets their goal of finding 300 bird species, you will receive an email to fulfill your pledge of $75.FINAL_MUG.jpg

Our thanks for your support:
For gifts and pledges over $100 you’ll receive a coffee mug featuring the Cedar Waxwing by Ann-Kathrin Wirth, a Bartels Science Illustration Intern.

If you prefer to make a donation now rather than pledge per species please click here.
Pledge a gift today
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