Starlings
Southwestern
States Commercial Service 1.877.828.2473
Starling Facts
Height/Weight
7.5"-8.5"
2-3oz
Life span
5-7 yrs. wild
13 yrs captivity
Flight speed
18-40 mph
Range
across country
rural to urban
Food
insects, wild fruit,
seeds & grain
Habitat
trees & building
structures, cactus
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Pigeon Sparrow
Swallow Starling Woodpecker
Starling
Biology and Information
Like the
house sparrow, the starling
(Sturnus Vulgaris) was introduced from Europe in the 19th century.
Starlings
did not spread as fast and only reached the western coast within the last few
decades. Starlings are well adapted to urban life which offer it an abundance of
food and nesting sites. It is a muscular bird about eight inches long with long
wings and a short squared
tail. Starlings are very aggressive and will drive native birds out of their
territory, much to the dismay of local bird watchers. Starlings are well noted
for their flocking habits. They often gather in the tens of thousands, creating
a nuisance when roosting in populated areas.
European Starlings weigh approximately 3.2 ounces; an average
starling is about the size of a robin. The adult starling has dark feathers
with speckles. Starling bills (both male and female) are yellow during
reproductive season (January to June), the rest of the year starling bills
are dark. Juvenile starlings have pale brown to gray bills. "Starlings are
chunky and hump-backed in appearance, with a shape similar to that of a
meadowlark. The tail is short, and the wings have a triangular shape when
outstretched in flight." Starling flight paths tend to be direct and swift.
Starlings can be found in various types of habitats "including cities,
towns, farms, ranches, open woodlands, fields, and lawns. Perfect nesting
habitats would include areas with trees or other structures that have
openings that are "suitable for nesting and short grass areas or grazed
pastures for foraging. During the winter, starlings live in areas where
nesting, roosting, and foraging for food and water is possible.
General Biology:
"European starlings were brought into the United States from Europe. The
were released in New York City in 1890 and 1891 by an individual who wanted
to introduce to the United States all of the birds mentioned in
Shakespeare's works. Since that time, they have increased in numbers and
spread across the country. The starling population is estimated at 140
million." Starlings will nest in any cavity of a structure, trees,
birdhouses, or cliff faces. The female lays about 4 to 7 eggs which hatch 11
to 13 days after incubation. Young starlings will leave the nest at about 21
days old. "Both parents help build the nest, incubate the eggs, and feed the
young." Starlings are not necessarily migratory, but some will migrate up to
several hundred miles, while others will remain in the same general area.
"Hatching-year starlings are more likely to migrate than adults, and they
tend to migrate farther." With the exception of breeding season, starlings
generally feed and roost together in flocks. Research has shown that
starlings can and will feed miles away from their nests. "Starling and
blackbird flocks often roost together in urban landscape trees or in small
dense woodlots or overcrowded tree groves. These birds will choose trees
that have plenty of perches so that the whole flock can roost together.
During the winter seasons, starlings will move into dense vegetation or
structures such as barns, urban structures, and homes. Starlings always look
for protection from the climate.
Damage:
Starlings are considered pests due to all the problems they cause,
especially around livestock facilities and near urban roosts. Starlings are
responsible for "transferring disease from one livestock facility to
another. Tests have shown that the transmissible gastroenteritis virus (TGE)
can pass through the digestive tract of a starling and be infectious in the
starling feces. TGE can be transmitted on boots, vehicles, stray animals, or
already infected livestock. Starlings cause other types of damage such as
consuming cultivated fruits and seeds from a recently planted field. "Large
roosts that occur in buildings, industrial structures, or, along with
blackbird species in trees near homes are a problem in both rural and urban
sites because of health concerns, filth, noise, and odor. In addition,
slippery accumulations of droppings pose safety hazards at industrial
structures, and the acidity of droppings is corrosive." Starlings that roost
near airports create a safety problem, with the possibility of the bird
getting sucked into the aircraft engines. One of the more serious health
concerns that starlings have is the "fungal respiratory disease
histoplasmosis. The fungus Histoplasmosis capsulatum can grow in soils under
bird roosts, and spores become airborne in dry weather, especially when the
site is disturbed. Histoplasmosis, in its most extreme state can cause
blindness and/or death. Another problem starlings have created is that they
are in competition with "native cavity-nesting birds such as bluebirds,
flickers, woodpeckers, purple martins.
Control
Starlings roosting habits can be modified permanently using 1-1/8" mesh
StealthNet and/or electrical systems like
Bird-Shock and Hazing. For large flocks or agricultural applications, sometimes these birds
can be moved with a well-timed, organized scare campaign using strategically
placed sophisticated audio systems like the Bird
Wailer, Squawker, or the Bird-Guard units depending on the size of
the area. These products combine natural and electronic sounds like species
specific distress calls, predator hunting/attack sequences and canon or
shotgun sounds. Other noisemakers such as Zon Guns
and Bird Bombs & Screamers often have
success in relocating these bird when combined with lights and visual
frightening devices that flash such as Flash Tape, Scare Eye Balloons or Octopus. A new technique that has found
some success for moving populations from trees is to use a thermal fogger hazer in the problem areas with ReJeX-iT, Force Fog.
Legal Status:
European Starlings are not protected by federal law and in most cases
state law does not offer them protection. Local Fish and Wildlife should be
consulted before any methods of treatment are applied.
Acknowledgement:
- Courtesy of The Wildlife Damage Handbook
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