Got Nature? Blog

Cold winter winds, alternating extreme temperatures, ice and snow can be damaging to trees and shrubs. However, this spring, we are seeing additional damage due to the harsh winter conditions that is of the furry kind: rabbits and rodents. Mice and rabbits often damage young trees in the winter by feeding on the juicy, green cambium layer just under the bark and girdling the tree. Damage from these furry creatures occurs most commonly in winters when there is prolonged, heavy snow cover and food is scarce. Sound familiar? Rabbits feed on the bark above the snow while mice tunnel under the snow and feed near the ground level. Mouse damage is usually more severe when the trees are surrounded by heavy grass, weed cover or heavy mulch.

On young trees and multi-stemmed ornamental trees, rabbits remove the bark completely around the trunks and stems, effectively girdling them. All growth above the girdled areas will eventually decline and die, and for most situations, replacing the girdled trees is the best course of action. There are no applications that will mitigate the effects of rabbit damage or save severely damaged trees. Wound dressings, pruning paints, latex paints, wrappings and other alleged protective barriers do not help.

Many deciduous shrubs have the ability to produce new shoots or suckers at their base. Because of this ability, many severely damaged deciduous shrubs can recover. However, patience is required as several years may be required for some shrubs to fully recover. In early spring as the greening begins, prune off girdled stems just below the damaged areas. This will help rejuvenate the plant in most circumstances and replace the damage growth.

The most effective deterrent to girdling by mice or rabbits is to wrap the trunk and low branches of young trees with screen wire or hardware cloth. Be certain the wire wrap is buried below the ground line and extends high enough above the possible snow line to prevent rabbits from reaching to the trunk or branches. To help control mouse damage, maintain an area free of grass or weeds for a 1- to 2-foot radius around the base of the tree. Additionally, maintain proper mulch levels, never more than 2-3”, to eliminate the habitat for mice. Various chemicals are available to repel mice and rabbits, but these do not afford the reliability of a well-made barrier.

Resources
Preventing Wildlife Damage, The Education Store, Purdue Extension
Vole Damage in Pumpkins (and other crops), Purdue Extension – Forestry and Natural Resources (FNR) Got Nature? Blog
Moles, The Education Store, Purdue Extension resource center
Adjuvants and the Power of the Spray Droplet: Improving the Performance of Pesticide Applications, The Education Store
Preventing Wildlife Damage – Do You Need a Permit?, The Education Store
Attract Hummingbirds to Your Yard, Video, Purdue Extension Youtube Channel
How to Stop Woodland Animals from Digging in Your Flower Pots, Video, Purdue Extension Youtube Channel

Purdue Extension – Forestry and Natural Resources

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Wildlife identification guides are useful tools that help you figure out what kind of animal you may be looking at. However, they don’t always tell the complete story. Some animals such as garter snakes can have varied appearances which makes identification difficult. Some mammals have varied pelage such as striped skunks with some being almost completely black, white or some combination in between. A very small percentage of animals within a species may look dramatically different due to differences in pigment.

Albinos lack the ability to produce color pigment in their skin, hair, feathers, scales or eyes. Animals with this condition have a white appearance with red or pink eyes. The latter is the result of tiny blood vessels that are now visible. They are typically hidden by the colored iris which is transparent in albinos.

In wildlife, albinism is a rare occurrence at birth caused by a recessive gene. The rate in wildlife is estimated from 1 in 20,000 to 1 in 1 million. Their solid white coat of fur makes them more susceptible to predation, or conversely, would make it difficult for an albino predator to stalk its prey. Albinos also have poor vision or may even be blind. The combination of these factors results in low survival of albinos, further decreasing their proportion in the population.

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As an Extension Wildlife Specialist, this is one of the most common questions I receive. The answer to this seemingly simple question can actually be quite complicated. It depends in part on what wildlife species you desire and what objectives you have for wildlife and other land uses for your property. There is no one plant that will do it. Food habit studies show that deer, turkey and many other wildlife species can consume hundreds of plant species throughout the year. With that in mind, focusing on one or two “miracle” plants would not yield great results (also remember that the presence of wildlife on your property depends on the surrounding properties).

If you have a particular species of wildlife you are interested in, you can compare their habitat to what you have available to determine what is missing or limiting. You may also use a more general approach, looking at what major plant types are limiting such as hard mast trees, soft mast trees, shrubs, vines, annual forbs and perennial forbs. You will also want to evaluate water, cavities, downed woody debris or snags.

For questions about what to plant, it is easier to answer specific situations. Recently, a blog reader wrote that they just dredged their pond and spread it on a large open pasture about 50 yards from the pond. The reader wanted to know what to plant to attract quail and pheasant while also benefiting deer and turkey populations. Being in Monroe County, quail is more likely, so I will focus on that.

In the fall and winter, quail feed heavily on plant seeds, especially ragweed, pigweed, foxtail and agricultural crop residue. Spring and summer foods include tender green vegetation and soft fruits. Invertebrates are consumed when available and are essential for the development of chicks.

Cover is equally important in deciding what to plant. A mixture of herbaceous (grass, wildflowers) cover with bare ground interspersed with some woody shrubs or open woodland edges will generally benefit quail. With these in mind and using what the “typical” Indiana landscape looks like, the owner may want to consider the following:

Native Warm Season Grass mix – This provides quality brood and nesting cover. Rates are listed in pounds (lbs.) PLS (Pure Live Seed) per acre. A typical mix for quail recommended by the USDA Natural Resources Conservation Service is listed below. The general idea behind this and other mixes for quail is the bunch grass provides overhead cover above and bare ground and space below. This allows free access to seeds on the ground from the wildflowers along with invertebrates on the ground and vegetation. Quail are small and can’t scratch their way to seeds like turkey and other larger birds.

Species	Rate (PLS)
Grasses
Big Bluestem	0.25 lbs.
Sideoats grama	2.00 lbs.
Canada Wildrye	1.25 lbs.
Little Bluestem	0.50 lbs.
Wildflowers
Partridge Pea	4 oz.
Illinois Bundleflower	1 oz.
Purple Prairie Clover	3 oz.
Purple Coneflower	2 oz.
Black-eyed Susan	1 oz.
Wild Bergamot	1 oz.
Showy Tick Trefoil	1 oz.
Butterfly Milkweed	2 oz.
Lead Plant	2 oz.
Round-headed Lespedeza	2 oz.

Plant a mixture of shrubs – Shrubs provide good resting cover and winter cover for quail. Bare root seedlings planted in the spring should be planted 6 ft. x 6 ft. spacing in clumps “about the size of a large pickup truck.” Species that provide good structure for quail include gray or silky dogwood. American plum and serviceberry will also benefit wild turkey and white-tailed deer.

IMPORTANT: Plant species and mixes recommended above may not be suitable for the site moisture or soil conditions. Improper site preparation and methods will lead to planting failures. Contact your county extension office for proper methods and species that are appropriate for your area. It is always best to have a resource professional visit your site to provide you specific advice that considers your current habitat condition and the equipment and resources available to you, along with what you want to accomplish. In addition to your county extension office, you may want to contact your DNR district wildlife biologist. Finally, planting is only a start. Providing habitat for wildlife, and especially for early successional species such as bobwhite quail, requires continually habitat management that may include invasive species control, prescribed burning, disking or more.

Resources:
Natural Resources Conservation Service Indiana
Pheasant Forever
Quail Forever
Pure Live Seed: Calculations and Considerations for Wildlife Food Plots, Purdue Extension – Forestry and Natural Resources (FNR)
Seed Fillers and Carriers for Planting Native Warm-season Grasses and Forbs, Purdue Extension – FNR
Calibrating a No-Till Drill for Conservation Plantings and Wildlife Food Plots, The Education Store, Purdue Extension resource center
Subscribe: Purdue Extension – Forestry and Natural Resources YouTube Channel
Habitat Help LIVE Q&A – Native Grasses and Forbs for Wildlife, Purdue Extension-FNR Got Nature? Blog/Video
Frost Seeding Native Grasses and Forbs with a Drone (UAV): Lessons Learned, Purdue Extension-FNR Got Nature? Blog/Videos
Creating a Wildlife Habitat Management Plan for Landowners, Purdue Extension-FNR Got Nature? Blog
A Template for Your Wildlife Habitat Management Plan, The Education Store, Purdue Extension resource center
Managing Your Woods for White-Tailed Deer, The Education Store

Dr. Brian MacGowan, Wildlife Extension Specialist
Department of Forestry & Natural Resources, Purdue University

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There are 36 species of snakes and lizards in Indiana and about 8,000 species worldwide. Lizards are the most taxonomically diverse and speciose group of reptiles with approximately 5,000 species. Serpentes represents the second most diverse and successful group of reptiles with approximately 3,000 species. Assistant Professor Rod Williams and Extension Wildlife Specialist Brian MacGowan of Purdue Forestry and Natural Resources have authored a book that provides information on the identification, ecology and behavior of snakes and lizards. This colorful resource with maps and photos expands upon their food habits, reproduction and conservation.

For more information about Indiana snakes and lizards, view The Education Store’s Snakes and Lizards of Indiana.

Resources:
Turtles of Indiana, The Education Store
Appreciating Reptiles and Amphibians in Nature, The Education Store
Forestry Management for Reptiles and Amphibians: A Technical Guide for the Midwest, The Education Store
The Nature of Teaching, Unit 3: Reptiles, Amphibians, and the Scientific Method, The Education Store
Snakes of Indiana, The Education Store
IDNR list of Endangered, Threatened & Rare Species
Indiana Herp Atlas
Partners in Amphibian and Reptile Conservation (PARC)
A Moment in the Wild: Black Racer, Video, Purdue Extension – Forestry and Natural Resources YouTube channel
A Moment in the Wild: Eastern Kingsnake, Purdue Extension – FNR Video
A Moment in the Wild: Eastern Hognose, Purdue Extension – FNR Video
Ask An Expert: Turtles and Snakes, Purdue Extension – FNR Video
Ask An Expert, Purdue Extension – FNR Playlist

Brian MacGowan​, Wildlife Extension Specialist
Department of Forestry and Natural Resources, Purdue University

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