More info for the terms:
cool-season,
cover,
forbs,
grassland,
herbaceous,
marsh,
severity,
shrub,
shrubs,
tree,
warm-seasonRing-necked pheasants require specific cover for different phases of
their life cycle. Therefore, cover types must be interspersed to insure
that all types are available throughout the year [
44].
Nesting cover - Nesting cover must be dense enough to prevent detection
of the nest and incubating hens by predators. An abundance of nesting
cover in early spring is especially important for successful nesting
since early clutches and broods are larger than later ones [
60]. Nests
located in undisturbed residual cover (plant vegetation remaining from
the previous year) have the best chance of hatching successfully
[
58,
60]. Grass-forb stands that are at least 8 to 10 inches (20-25 cm)
high in spring, preferably more than 12 to 14 inches (30-36 cm) high,
are attractive for nesting by ring-necked pheasants. The grass should
be upright, offer partial overhead concealment, and have high stem
densities in parts of the field, with some dead plant material on the
ground surface [
21]. Residual cover also provides important cover for
cocks on "crowing territories" [
45]. Managing areas for residual cover
has been described by Frank [
21].
Throughout the initial one-third (April to mid-May) of the nesting
season in South Dakota, nesting cover consists entirely of residual
vegetation [
58]. Residual cover of weeds and grasses in roadsides,
railroad rights-of-way, fencerows, shelterbelts, tree groves, weedy
grain stubble, ungrazed or lightly grazed pastures, marsh edges, stream
and ditchbanks, and abandoned farmsteads all provide good nesting cover
[
58,
60]. In Colorado, southwestern Nebraska, and Kansas, wheat stubble
provides good residual cover for nesting [
44]. Grass or alfalfa
hayfields often furnish nesting cover until mowing time, but then become
deathtraps for hens, eggs, and chicks [
60]. Studies throughout the
Midwest have shown that alfalfa and red clover hayfields, particularly
when coplanted with smooth brome, provide preferred nesting cover for
ring-necked pheasants [
26,
44].
In south-central Nebraska, 82 percent of all ring-necked pheasant nests
were established where vegetation made its maximum growth during the
spring months. Thirty-two percent of all nests were found in alfalfa,
27 percent were in cool-season grass stands, and 23 percent where found
in winter wheat fields. Mixed assemblages of forbs, grasses, and
semiaquatic plants occurred at 16 percent of all nest sites. Vegetation
complexes of mixed warm- and cool-season grasses and complexes that were
entirely composed of warm-season species occurred at slightly more than
2 percent of all nest sites [
3].
In many states, roadsides provide the most important nesting sites
[
4,
44,
49]. In eastern South Dakota, roadsides comprised only 3 percent
of the study area, but 14 percent of all ring-necked pheasant were
hatched in roadside vegetation [
49]. A Nebraska study revealed that
more than 25 percent of the ring-necked pheasants produced on the study
area came from roadsides, which made up 1.4 percent of the area [
4].
When roadside cover is not mowed from year to year, nesting use and
hatching success often increase substantially [
35,
55]. Several
researchers reported ring-neck pheasant preference for nesting in
narrow, strip cover versus large blocks [
23,
66,
67].
Brood cover - Brood cover must conceal the hen and her brood, as well as
provide food while chicks are small [
60]. In New Mexico, Knight and
Dixon [
36] reported that ideal brood cover is layered with varied
screening ability: thick from the ground level to 8 inches (20 cm)
high, and fairly heavy between 8 to 20 inches (20-51 cm) above ground.
Twenty- to 40-inch (51-102 cm)-high cover should be thicker than in the
surrounding area [
36]. Broods are found in roads and open areas within
and along field edges in early morning when grass is wet with dew; in
relatively short, open cover when feeding; in taller, heavier cover for
loafing during the midday; and in unmowed grassland or weedy areas for
nighttime roosting [
58,
60]. Dusting and grit-picking sites tend to be
in more exposed areas, usually adjacent to dense escape cover [
60].
Brood cover and home range change as chicks mature. During the early
portion of the brood-rearing season, in June and July, ring-necked
pheasant chicks use the same cover types that are important for nesting.
Brood-rearing areas center around hatching sites during the 3 weeks
after chicks hatch. In Montana initial brood-rearing areas generally
range from 5 to 10 acres (2-4 ha), and in South Dakota from 10 to 30
acres (4-12 ha) [
58,
60]. Outward movements from hatching sites lengthen
as mobility improves with age. In South Dakota, home ranges average 71
acres (29 ha) by late August, with alfalfa and grain harvests causing
shifts in young ring-necked pheasant home-range locations [
58].
Favored summer feeding places for broods are recently cut hay or grain
fields, although some feeding occurs in all types of cover. Cover
consisting of medium-density vegetation is used more commonly in summer
than light or dense cover [
37,
58]. Woody cover is valuable to broods
for shade in hot weather [
47,
58,
60]. Small trees and shrubs receive
more use than tall trees or hedgerows of shelterbelts [
47,
58]. Row
crops such as corn, sorghum, and soybeans are not used extensively until
August, when the grain and much of the stubble have been harvested
[
3,
37,
47,
58]. Use of row-crop fields, particularly corn and sorghum
fields, for resting, feeding and dusting, normally begins early in
August and continues through September and October. By then most young
have dissociated from broods and adults, and young in small groups or
loosely organized flocks more readily use all available cover [
3,
58].
Loafing and roosting cover - During spring and summer ring-necked
pheasants loaf in vegetation suitable for escape as well as other needs.
Choice of loafing sites is usually random among prevalent plant
communities. Brush tickets, shrubrows, and tall weed patches are
favored on hot summer days for shade. In South Dakota, mixed
alfalfa-grass communities are used heavily during the latter part of
spring [
58].
Woody vegetation is preferred for loafing in the winter. During this
season, ring-necked pheasants prefer loafing sites that provide overhead
protection, rather than the open canopy often used for summer roosting.
Use of loafing and roosting sites is influenced by severity of winter
weather and depth of snow cover. Dense stands of woody or herbaceous
cover are used on severely cold, windy days, while relatively sparse
weed patches or small thickets are the most likely choices on mild,
sunny days. In early winter and when snow is not deep, ring-necked
pheasants usually concentrate near woody cover for daytime loafing.
Night roosts are in nearby herbaceous cover. When all herbaceous
vegetation is buried under drifting snow, woody cover is used for
roosting and loafing. If necessary, ring-necked pheasants use the
leeward side of shelterbelt snowbanks for protection during blizzards
[
58].
Winter cover - The importance of winter cover areas to ring-necked
pheasants depends on the area's distance to food. Cover beyond 1 mile
(1.6 km) from food is seldom used. In South Dakota, Michigan, Iowa, and
Montana, distances usually traveled for food during winter rarely exceed
one-fourth mile (0.4 km) [
58].
Lyon [
65] reported vegetation height in excess of 15 inches (38 cm) and
stem densities ranging from 6 to 30 per square foot at winter roosting
sites in north-central Colorado. Knight and Dixon [
36] recommended that
winter cover in New Mexico be more than 15 inches (38 cm) high. with
herbs included in all plantings [
36]. In South Dakota, wetlands and
some shelterbelts provide most of the winter cover [
44]. Sweetclover
(Melilotus spp.) and tall, dense stands of cattails, bulrushes, and
other marshland vegetation are highly favored when snow cover limits
food availability [
58]. In North Dakota, ring-necked pheasants require
wide, dense shelterbelts that provide adequate cover from drifting snow.
In Kansas and Colorado, wheat stubble with nearby shrub cover such as
plum thickets is used. In Wisconsin wetlands offer good winter cover
[
44]. Cattails and bulrushes in playas provide excellent winter habitat
in the Texas panhandle. Playas with adjacent wheat, corn, and sorghum
fields have proven to be good winter areas for ring-necked pheasants
[
36]. Winter cover in northern Iowa may be limiting since vegetation in
many shelterbelts and farmstead windbreaks has been removed or has
matured and no longer provides adequate cover. Standing herbaceous
cover may be adequate winter cover in the southern latitudes of
ring-necked pheasant's range [
44]. In New Mexico, cover around water
may also be used. Fall plowing, fall burning, trampling and heavy
grazing around water, and removal of old tree blocks and belts may be
detrimental to wintering ring-necked pheasants [
36].