Osprey chicks outfitted with satellite backpacks
Nearly absent from much of the state due to the effects of DDT and other pesticides and habitat loss, ospreys continue to rebound in Michigan. In southern Michigan, monitoring efforts are tracking the revitalization of this species.
This year, six osprey chicks from area nests were outfitted with “backpack” satellite and GSM telemetry units. These units – funded by grants from DTE Energy, Huron Valley Audubon, photographer Lou Waldock, U.S. Department of Agriculture Wildlife Services and American Tower Corporation – will help scientists track the young birds’ daily movements and seasonal migration patterns.
In 2013, three osprey chicks were given GPS backpacks in southeast Michigan. One chick banded near Estral Beach migrated to Cuba. A chick from Kensington Metropark ventured to Colombia, and one from Pinckney found good fishing sites on a golf course in Miami.
Unfortunately, all three chicks with backpacks perished in 2013. Approximately 60 percent of the osprey chicks hatched each year do not make it to their second birthday. Factors that commonly cause mortality in young chicks include predation by great horned owls, collisions with buildings and other structures, weather, and illegal shooting of birds in Central and South America.
“We are very excited to have this opportunity to place GPS units on several ospreys this year,” said Julie Oakes, Michigan Department of Natural Resources wildlife biologist. “This will provide the DNR with not only information on what migration routes the birds take, but also insight into what perils they must endure on their migration.” Read more

The snuffbox mussel is inconspicuous, yet in many ways is a lie-in-wait predator. But instead of eating her prey, she uses the unsuspecting victim as host to her young. Mussels have a fascinating life history. Mussel babies, called glochidia, need to attach to the gills or fins of a specific type of fish to complete their life cycle. Snuffbox moms with babies sit in the bottom of a stream with their shells open somewhat to display their mantle (their fleshy body inside the shell). A fish swimming by will see that nice, soft flesh and think it’s a free meal. The fish will swim down and try to take a bite of the mussel’s mantle. Once the snuffbox feels the fish poke it, it grabs on to the fish’s head – for the snuffbox the particular fish host is a logperch. Mussels don’t have eyes, so it is purely by feel that the mussel grabs the fish. The mom snuffbox then shoots her microscopic glochidia at the fish’s head so that her young can attach to its gills. The glochidia mature within a few weeks and then drop off the host fish and live out the rest of their life on the stream bottom among the rocks. The glochidia don’t hurt the fish, and the process provides a great way for mussels to move away from their parents – it’s a free ride out of town.
The snuffbox (Epioblasma trquetra) is a remarkable mussel that is in danger of becoming extinct. Unfortunately there are many threats to this species. Dams affect their ability to move both upstream and downstream, which can isolate populations. Mussels live most of their lives in a very small area, so toxins and poor water quality can easily harm them. Invasive species have also played a role in the decline of snuffbox. Zebra mussels often use any hard surface to attach to, including native mussels like the snuffbox, which end up suffocating because they can’t open their shells.
By Austin Delano – Plot partitioning…that’s a mouthful of vowels that simply means keeping crops separate. With the increasing number of hunters planting food plots for wildlife, the need for some of us competitive minded folks to take farming for wildlife to another level has also risen. The days of just simply tossing a bag of grain bin floor sweepings out on plowed up field are over. With all of the research that has taken place over the last 15-20 years on the importance nutrition plays in the quest for healthier and bigger deer, gamekeepers have a lot of resources at their disposal to know what, when, where, why, and how to grow crops that are going to benefit their deer herd and other wildlife.
