If you've always wanted to learn about birds and birding, migration is a great time to get out and do it! Birders are very excited during this time of year and you will find numerous guided tours through local Audubon centers and town conservation commissions. Google: "Guided bird tours near me" and see what comes up! You can also sign up for birding email lists and Facebook groups to receive notifications when birders are going out, as well as alerts about rare birds are in your area. Birding is fun, it's healthy (you get exercise, fresh air and vitamin D!) and you'll be so happy you took that leap! Most birders are happy to take a beginner "under their wing" since everyone needs to start somewhere and we all know that first you learn, then you participate and then you are more likely to conserve, and we all want birds protected.
Remember, you can play your part to keep migratory birds safe and healthy by eliminating pesticides from your lawn and garden, growing native plants that attract insects which are a critical food source for many migratory birds, only buying Bird Friendly Certified coffees and never cutting trees in the spring and summer (nesting season). We don't want to lose these treasures, so we all need to do our part to protect them.
Below are a few of the amazing migratory birds you may see in your area during the months of May and June. Many of these are east coast species.
Can you tell the difference between poison ivy seedlings and red maple seedlings? Early spring when both begin to grow (and quite often occupy the same habitat) these two seedlings may cause some confusion. Right now they are both a couple of inches tall and easy to miss in your lawn or garden. In the photos below you can see the obvious differences, which will hopefully help you identify them and avoid making a mistake and winding up with contact dermatitis, i.e. the itchy poison ivy rash.
Unless it has been browsed, poison ivy has three leaftlets per leaf which are alternate along the stem. The seedling leaflets can be red or green and fuzzy, shiny or dull. Red maple has a simple leaf, which grows opposite along the stem and can be red or green as well, but not usually fuzzy. See below.
Poison ivy seedlings vary in appearance as much as they do in habitat, so be on the lookout for those inconspicuous seedlings since they can deliver a nice dose of urushiol to that bare, unsuspecting forearm while gardening.
Check out our Rash Plants app for more identification tips for poison ivy, oak and sumac and stay safe this spring!
Spring has finally sprung and that means bears are on the move! Adult bears (and cubs) are emerging from their dens for what is possibly their first big meal in months. An easy target, and often one of their first, is the backyard bird feeder. Bears have become a little too comfortable dining on feeders filled with suet, black oil sunflower seeds, and dried nuts and berries throughout the spring, summer and fall. In response, several organizations have agreed upon a bird feeding timeline which keeps bears safe and feeds birds during the time of year they really need it. The official dates are: December 1 - April 1.
You can safely put feeders up December 1st but remember to take them down April 1st. Note: These dates may shift with climate change.
If your feeders have been hit by bears during the night (and occasionally during the day - see photo below), then you know the damage is usually irreparable. Replacing feeders and poles after repeated attacks is costly, but that's only half of the problem. The other more critical half is that bears become accustomed to humans and no longer fear us, which creates nuisance bears resulting in bear/human conflicts. Although black bears rarely attack humans, they are wild animals and should be treated with caution, especially a sow with cubs. If bears become a nuisance, they are typically dealt with by wildlife officials which means they are either relocated to areas where they will be safe from human interaction, or more commonly euthanized.
We all love our birds and bears, so if you abide by those dates (December 1- April 1) and feed the birds only when a) they really need to be fed and b) during times bears are less likely to hit feeders, everyone wins!
Every year, on the first warm rainy night of spring (usually around 55 degrees), wood frogs, spring peepers and mole salamanders (which include several mid-sized, stout-bodied salamander species) begin a mass migration to the vernal pools where they breed. This event is commonly referred to as the "big night." It is impossible to set a calendar appointment for this event, but keep an eye on the temperature in your area and when the mercury rises from the 40s to the 50s, especially if there is a warm week prior to the first rainy warm(ish) night, be on the lookout. If possible don't drive on nights you think may be a potential "big night" to avoid hitting migrating amphibians.
How can you identify a vernal pool? They are typically small (some may be larger) ponds that fill with water for a short time during spring. Most dry up by the end of summer. In some areas, vernal pools may fill after fall rains. These small, temporary ponds may not sound very impressive, but they are critical breeding habitat for amphibians. What makes them so important to amphibian survival is the absence of predators, such as fish, during the egg and larval stages of frogs and salamanders. If you happen upon a vernal pool, look for egg masses and tadpoles as well as fairy shrimp (a tiny crustacean) and other animals that you will only find in a vernal pool in spring. If you're interested in learning more about vernal pools, you can contact local nature organizations, such as Audubon centers to find and explore vernal pools in your community. If you'd like to participate in citizen science programs for mapping and certifying vernal pools, simply do a Google search for vernal pool mapping near you or contact your state university extension office for guidance.
What are threats to vernal pools? Mainly development and adverse effects of habitat alteration. Even though there are rules and buffers in place to protect wetlands and vernal pools, impacts are inevitable. If a pool is protected but not the surrounding woods where amphibians spend the other 11 months of the year, the population will decline. Other factors contributing to vernal pool decline are pollution, water table changes and a warming climate that will dry up pool prematurely.
Vernal pools are a unique habitat and if you have an opportunity to explore one, definitely do it! Always be mindful that there may be amphibians on the move and the area surrounding the pools is also sensitive, so tread lightly!
We are no strangers to invasive species at Naturedigger. Many of our apps highlight invasive plants and/or animals and raise awareness about the damage they can cause if not kept in check. Since this week (2/25 through 3/3) is officially National Invasive Species Week, We are highlighting one of the world's top 100 most invasive species, knotweed. First, here is some basic information about invasive species.
How does an invasive species get transported from its natural environment to one that allows it to thrive and take over?
Typically, plants and animals are brought to the U.S. and Canada accidentally and undetected, but not always.
• Can arrive either with nursery stock unintentionally or as ornamentals (on purpose) which are purchased and prized by gardeners (i.e. giant hogweed)
Aquatic plants and animals:
• Often arrive in the ballast water of large container ships entering our waterways (think zebra mussels). Once they release their water, everything they picked up in their home port is now quite happy living in ours.
• Fishermen often transport fish and plants from waterbody to waterbody unknowingly, so remember to Clean, Drain and Dry your boat and fishing gear before launching into a new waterbody.
• Careless aquarists also help spread aquatic invasive species such as fish, snails and aquatic plants because they often release them into local waterbodies once they are no longer interested in keeping them. This is a huge problem and species such as elodea and goldfish are becoming a huge issue for freshwater ponds and lakes. Always contact your local pet store to drop off any unwanted plants or animals or list them for sale or for free.
Why do so many foreign species take over?
Occasionally when released to a new environment, a plant or animal may either die off quickly due too poor conditions, lack of food, lack of mates or something they require but can't obtain in their new environment. However, quite often they spread or grow out of control primarily due to the absence of whatever kept them in check in their home range. This could include bugs, diseases, climate, soil type and myriad of other things that allow them to grow normally and not expand beyond their normal range.
A perfect example of a plant that has gone unchecked and is exploding across the country is knotweed. This seemingly unstoppable plant blocks wildlife corridors, causes flooding as well as expensive property damage. It can change water chemistry and become a monoculture in areas of sensitive habitat, like river banks. Japanese knotweed is the most commonly recognized of the knotweed species, however, there are four separate species, which includes a hybrid. All knotweed species are aggressive and costly both to homeowners and to open space, wildlife and public park managers.
Below are images of all four species. Check out our Nature Education section on this site for more identification help and download our iOS app, Knotweed! to learn to identify all four species using our Quick ID slides. Also, take a look at the management plan in the More... menu of the app in the event you encounter it on your own property. To ensure you never bring knotweed into your life, always be aware of where your topsoil and mulch come from if you are doing a landscaping project. If you employ a lawn maintenance company, ask them if they are able to identify knotweed before they park on your property or unload any equipment. And NEVER back your car or truck into an area with knotweed, since just a single node from the stem can get stuck in your tire tread and drop onto your lawn starting a new infestations.
Since knotweed will find a way to break apart roads and in some cases the foundation of your home (when growing nearby), it is very important to learn to identify it quickly and take care of it before it becomes a major issue. See structural damage photos below as inspiration to learn to identify knotweed in the early stages before they become a headache and a ten year long management project.
Knotweed structural damage
If you live in the US and experienced the wrath of the recent Polar Vortex, you undoubtedly have cabin fever. Big time. We all do! Just remember that even though it is the middle of winter, poison ivy, poison oak and poison sumac can still dish up a healthy dose of contact dermatitis and leave you very uncomfortable for weeks or longer if you don't catch it in time. Be on the lookout for white berries on stems with an alternate leaf arrangement (leaf scars are not right across from each other). The stems with berries are the female plants and many of the berries are still present on the plants throughout the winter and spring.
Remember to wash your clothes as soon as you get home from your much-needed nature fix, since you can get urushiol oil on your pants or snow pants. The oil will linger on your clothes while sitting in your laundry basket and spread to other articles of clothing, yourself or a family member. Also wash with Dawn dish detergent immediately if you think any part of your skin came in contact with one of these rash plants.
Enjoy your hike and be safe!
For more information download Rash Plants from the App Store!