Alan Merrifield Owner

URBAN WILDLIFE MANAGEMENT, INC.
 The San Francisco Bay Area’s Premier Wildlife Control Company
 Telephone: 650-638-9029    <>   Fax: 650-638-9040

 
ANIMAL DAMAGE 

~ BATS ~

Bats can transmit rabies and act as a host for encephalitis, both of which can be fatal to humans. Bat manure may contain histoplasmosis spores which can be transmitted to humans. Bat urine and feces, in large quantities, can produce offensive odors inside structures.
 
 

Droppings On Insulation

Bat Colony On Rafter

 

Bats On Chimney

Pallid Bats

 
 

  

~ Woodpecker Damage ~
 

Acorn Woodpeckers have been actively creating cavities in the siding and supporting structures of Peninsula homes. In this San Carlos house, the birds made numerous small holes into which they deposited acorns from the surrounding oak trees (see posts and beams in Fig.1)

The woodpeckers also made a number of larger nesting cavities in structural supports (see the post I Fig.2 and the benderboard ceiling in Fig.3)

If this kind of structural damage caused by Acorn Woodpeckers is left unrepaired, other birds in search of nesting sites and flying insects such as bees, hornets, and wasps looking for a sheltered spot to deposit their eggs, will move right in to raise their families right along with yours.

It is important that you get these openings closed as soon as you notice them because they are highly attractive to the local birds and insects and their presence will only compound your home’s animal damage problems.

 


 Figure 1


Figure 2

 


Figure 3

Acorn Woodpeckers had been working on this benderboard ceiling to create a new nesting site. Unfortunately for them, a pair of Horned Owls moved right in and sent them packing.

 

 

 

~ Bird Damage ~
 
 

Reported wildlife strikes have killed more than 400 people worldwide and have destroyed more than 420 aircraft.
Between 1990 and 2001 alone, over 40,000 strikes have been reported to the Federal Aviation Administration. 
The estimated cost of wildlife strikes to U.S. aircraft is nearly a half billion dollars per year.

 


 

       Nesting Materials
Small birds such as sparrows or starlings can build a mound of grass and twigs like this in an attic space within a single breeding season.

Not only does this condition present a potential fire hazard, but it also provides an ideal breeding medium for various microorganisms and insects known to endanger human health.
 

 

Pigeons like these really deserve to be called "dirty birds" or "flying rats". 

They are prolific producers of fecal matter and they spread it around in great quantities.

They establish their nests in the midst of their droppings where they usually deposit two eggs at a time. 

Photo by Kirk LaPierre 

Pigeon Pollution

 

Air-borne fungi from pigeon droppings can cause respiratory mycoses such as histoplasmosis and cryptococcosis.

A risk to human health exists when the air-borne spores infiltrate a building's air ducts and are then disseminated throughout the interior spaces and unknowingly inhaled by people.

Photo by Kirk LaPierre 

 

Pigeons need only food, water or shelter to survive and multiply on a given property.

This extended family roosted inside the attic of this house and loafed outside on the roof.

 A breeding pair can produce a large extended family like this one in only a few years.
 


 

SAN MATEO COUNTY TRANSIT DISTRICT
BUS MAINTENANCE BUILDING
    South San Francisco, CA  10/6/08 
Black Bird Netting (3/4"X 3/4" Black)

 

SAN MATEO COUNTY
TRANSIT DISTRICT
BUS MAINTENANCE BUILDING
    South San Francisco, CA   
 

A net ceiling of 3/4 inch bird netting was installed below the  canopy. This stopped black birds and other small pest birds access to the underside of the canopy for perching.


 

The 3/4 inch bird netting was installed flush with the tops of the light fixtures.   This stopped black birds and other small pest birds access to the top of the light fixtures for perching, but allows easy access for maintenance of the light fixtures.
The net ceiling of 3/4 inch bird netting deny  black birds and other small pest birds access, but does not interferer with the bus maintenance operation.


 

SAN MATEO COUNTY MOTOR POOL
PIGEON CONTROL PROJECT
   Redwood City, CA  10/10/08 
Pigeon Netting (2"X 2" Black)

 

      

San Mateo County Center
Motor Pool
Redwood City, CA

 

Installed 2 inch pigeon netting below the  canopy. This  formed a net ceiling denying bird access to the underside of the canopy for perching.

The 2 inch pigeon netting continued down the two sides of the canopy along the supports, closing the gap between the canopy and adjacent roofs. This prevented pigeons access from the sides.  

Installed 200 feet of bird spike around the perimeter of the canopy over the gas pumps.This will prevent pest bird perching.

 

 

SEAGULL CONTROL PROJECT
    Colma, CA  4/21/08 

Gull Netting (4”X 4” Black)

Bird Jolt low-voltage, solar-powered, electric track





Artistic concept

  

The Bird Jolt system was  installed onto the ridge tiles of a mortuary roof  where the pesky gulls would stand, watch  and wait for a bird feeder to drive up and provide the birds’ with their next meal.


The deterrent effect was seen almost immediately and has persisted without fail.


View of roof’s ridge tiles from street
 


Actual installation
 

Neither the tracks nor the solar charger can be seen from the street level and, now that the roof has been cleaned and the gulls have been sent packing, our customer could not be more pleased.

Gull Netting (4”X 4” Black)



Looking through the gull netting from the flat roof
 



Looking up through the overhead netting
 



Looking up at the netting from the street
 

 Daddy Long Legs



The gulls used this cupola to watch for the arrival of food.
You can see the “snow capped mountain” they’ve created.
 



Thin, stainless steel rods rotate in the breeze and wave
menacingly, interfering with the gulls as they attempt to land.

    Screech Owl

We installed this rotating animated screeching owl to frighten gulls away from this particular area in the cemetery. Four predator sounds are programmed: birds in distress, predator attack, cries and wing beats. A photo cell activates the sounds during daylight hours

 


 

Identify your pest birds:

Learn whether your pest birds are pigeons,  seagulls, sparrows, starlings or crows, and how to resolve the damage they are doing.

 

 

 


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