Drunken Birds

As part of the festive past  few weeks I’ve noticed some animals also getting in the “holiday” spirit. By the time we have experienced a freeze and thaw cycle, many of the crab apples or other berries that were left on the trees have fermented. Many of us are a little too aware of the consequences from consuming fermented plant matter and actually a bird’s reactions to consuming fermented fruits are very similar to human’s-they become intoxicated. One of my early college intoxication experiences happened with a tree…… and Cedar Waxwings! While I was walking home from class (sober I might add; I was a good student!)  I noticed several crab apple trees full of Cedar Waxwings. I wasn’t as familiar with my bird species or bird behavior so I attempted to get a little closer and the birds didn’t take off. So I got a little closer and still nothing. Eventually I ended up so close that I reached out and touched one of the birds that was perched on a low branch. The little Cedar Waxwing just cocked its head and blinked at me a few times.  I may have been a first year biology student but I knew enough to know that that was weird!

As it turned out those strange Cedar Waxwings had gone a little overboard with the fermented crab apples and were just really really drunk. This last week I have noticed several species of birds hanging out in the trees munching on berries including American Robins, Cedar Waxwings, and even a Ring-Necked Pheasant!

 

If you look really closely you can see a few tiny Black-Capped Chickadees eating the crab apples right outside of the Interpretative Center!

This is the closest thing I’ve seen to a Partridge in a Pear tree-A pheasant in a High Bush Cranberry!

So maybe the phrase “party animal” isn’t so far fetched! Happy 2015  and remember, there is no such thing as bad weather only bad clothing and bad attitudes! 🙂

Wait, what month is it??

This week was a little bit disappointing…. IT WAS TOO WARM! With an average temperature of 29⁰ it was practically tropical outside. Just to give you a little comparison, last year the average temperature for the 2nd week of December was 10⁰. Regardless of the yucky warm weather I still saw some pretty amazing things and those things were owls!

Now if you’re familiar with River Bend’s programming you know that we have an OWLS (Older Wiser Livelier Seniors) program once a month and although I would also consider them full of wisdom I am talking about the feathered, silent, nocturnal type of creature.

One of our extremely amazing River Bend volunteers also happens to be an amazing birder and he took us out for an owl search and we had really good luck! We found a barred owl and a great horned owl! We accidentally scared both of them from their perches but it was still pretty awesome!

One of the coolest things about discovering where an owl perches is what the owls leave behind…their pellets!

These are two owl pellets found at River Bend. The one on the left came from a barred owl and the one on the right is a long-eared owl. Long-eared owls have a much darker, dense, and elongated pellet

So keep looking for that winter wildlife! You might find something surprising! And remember, there is no such thing as bad weather only bad clothing and bad attitudes! 🙂

Snow Stories

November 15, 2014

One of the views exclusive to winter mornings

Another view of the prairie and woods in the distance. Notice the sparking snow 🙂

Spending time outside is an essential part to most people’s well-being. I am lucky in the fact that my job consists of daily outside time but I wanted more so I started walking to work. My 25 minute walk is not only a great way to start the day but it also provides me with the opportunity to see nature at its most incredible moments. I have been contemplating starting a blog to share my experiences with the community for several months but for me facing the elements on a daily basis is much less intimidating than committing myself to sitting at a computer indoors once a week.

This week’s walk contained several new experiences.  With an average weekly low of 10⁰ the biggest change from last week is the snow and single digits temperatures.  IT WAS GREAT!! Snow is something we really take advantage of and tend to complain about but for the handful of us that have grown to appreciate and accept Minnesota for its longest season we know that winter is something to be treasured. Besides the breathtaking beauty (and cold) that comes with winter, there is also what I like to call snow stories.

Animals aren’t able to communicate in the way humans can but their tracks easily tell stories.  Snow stories tell you a little bit about what the animals are up to when we are spending our time drinking hot cocoa and sitting under blankets. This week I saw one of my favorite snow stories: The bird and the mouse.

A little rodent highway right into their hole

Another well traveled mouse path into a hole. Mice and other small rodents will spend a lot of their time digging tunnels under the snow. This protects them and also helps keep them warm.

Tunnels under the snow can’t always protect the mice. Many predatory birds (such as owls) have an excellent sense of hearing and can detect their next meal from under the snow! That is exactly what happened here. You can see the marks from the bird’s wings and the area that the mouse was grabbed from. My favorite type of snow story 🙂

Please take some time to admire this underappreciated season! Bundle up, bring a warm drink and take a little time to discover (or make) your own snow stories! And remember, there is no such thing as bad weather only bad clothing and bad attitudes! 🙂

Amber Brossard is the Education Program Specialist for River Bend Nature Center, a member supported non-profit dedicated to helping people discover, enjoy, understand and preserve the incredible natural world that surrounds us. Contact us at rbncinfo@rbnc.org or 507-332-7151.

‘Til Death Do Us Part — Nature’s Five Most Romantic Couples

Sarah Shimek

By Sarah Shimek, Education Coordinator

5. Bald Eagles

Bald Eagle Pair - adults   Photo by Len Blumin

Bald Eagle Pair – adults
Creative Commons Attribution-Noncommercial-No Derivative Works 2.0 Generic License   ByLen Blumin

While bald eagles are known for their fantastically acrobatic aerial mating rituals, it is actually the nest-building that cements the bond between mates, building on the same nest season after season. Bald eagles are among the estimated 95% of birds that are socially monogamous – meaning they cooperatively raise their young over the course of a mating season and in most cases, will return to the same nest and mate year after year. One nest, used by an eagle pair for over 3 decades, measured 9 feet across, almost 12 feet high, and was estimated to weigh over 2 tons.  While genetic testing shows that they may engage in a little fling on the side now & then, known as “extra-pair copulation,” only several years of unsuccessful clutches or the death of one eagle will break up these super-couples.

Sandhill Crane Parents with baby By Matthew Paulson

Sandhill Crane Parents with baby
Creative Commons Attribution-Noncommercial-No Derivative Works 2.0 Generic License  By Photomatt28

4. Sandhill Cranes

Another bird renowned for their elaborate mating dances, the sandhill crane is also known as a symbol of long-term fidelity.  Bonded pairs call in unison, spreading the word that they are in a committed relationship.  During the massive breeding-ground migrations in the spring, their synchronized “kar-roo” is thought to be a bonding activity, kind of like Ginger Rogers and Fred Astaire dancing and singing their way across the stage. Unlike Fred & Ginger, crane pairs will stay together until one of them dies, even if they have a couple nests that flop.  Philandering among crane pairs is so rare that when a single extra-pair copulation event was witnessed in 2006 it was big news; in fact it was the first one ever documented.

3. Black Vultures

Black Vulture - Coragyps atratus   By Martha de Jong-Lantink

Black Vulture – Coragyps atratus
Creative Commons Attribution-Noncommercial-No Derivative Works 2.0 Generic License  By Martha de Jong-Lantink

For black vultures, enforcing monogamy is a community affair. These ominous birds seem to be deeply serious about their commitment to a chosen partner. The pair will hang out together year-round and share parenting duties.  Individuals caught engaging in extra-pair copulation will not only be attacked by their mate but by neighboring vultures as well. Genetic study of 17 different vulture families found no evidence of extra-pair fooling around, giving new meaning to the phrase “It takes a village…”

Prairie Vole

Prairie Vole

2. Prairie Voles

Mammals – rodents in particular, are not necessarily known for their fidelity.  But the little prairie vole is a notable exception. Once they have lost their virginity, males will prefer to mate exclusively with that female, even going so far as to attack other females.  Scientists have traced this behavior to a hormone in the brain, which triggers lasting bond formations and aggression towards potential home-wreckers.  Once mated, these “high school sweethearts” share parental duties, groom one another, and appear quite affectionate. When presented with “unfamiliar, virgin females” in the wild, less than 10% of male voles succumbed to the temptation. Even more unusual, less than 20% of committed voles sought out a new mate if their partner died.

1. Diplozoon paradoxum (parasitic worm)

As unattractive as it sounds, this worm takes the prize for most committed among Nature’s couples. I’ve spared you pictures of this particularly homely couple. This fish parasite practices an extreme form of monogamy. Individuals meet as virgin adolescent larvae and literally fuse together at their midsections. Sexual maturity is not reached until the worm fuses with a mate. Once fused, they remain together until they die sometimes several years later, when even then they are not parted.  As Dr. Barash, a professor of psychology at the University of Washington in Seattle noted in an article in the New York Times, “That’s the only species I know of in which there seems to be 100 percent monogamy.” The only heartache here is in the unfortunate fish that hosts this epic romance.

Sarah Shimek is the education coordinator for the River Bend Nature Center, a 501(c)3 non-profit organization in Faribault, Minnesota that specializes in nature and environmental education.  The Nature Center property includes 743 acres of original and restored natural lands with over ten miles of trails that are open to the public 365 days per year. River Bend Nature Center relies on donations and memberships to fund its operations, please join and give today. Contact us at rbncinfo@rbnc.org or 507-332-7151.

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