American Indians attracting Purple Martins
Native American Indians provided Purple Martin Housing
Purple Martin Propagators TM
(512) 825-4712  Supplying you with what the Purple Martins Need
Courtesy of Gerard Frisheteau & the PMCA
Purple Martins are the largest swallow in North America and are known as
Aerial Insectivores
(which means that they only eat flying insects that they
while in flight).  Each bird can consume up to 2000 flying insects every
day (mosquitoes, wasp, house flies, ballooning spiders, crickets, etc.).  This
natural method of flying insect control was observed and utilized by Native
American Indians who, for thousands of years, hung hollowed-out gourds
around and in their villages to provide nesting cavities that would attract this
very beneficial bird species.  In turn, this created the only semi-domesticated
migratory bird in the United States.  Purple Martins also use human presence
to ward off predators.  This is why Purple Martin Housing should not be placed
more than 150' from where people gather on a regular basis (for more on this
"Purple Martin Housing System Placement" at the bottom of this page).

Purple Martins are also
Secondary Cavity Dwellers.  This means that they do
not build cavities like wood-peckers, but, instead, they will migrate back to
North America early enough to find empty cavities for building their nest in and
raising young to the fledgling (flight) stage of development.  Today, however,
Purple Martins are totally dependent on humans to provide them with housing
for raising their young.  This is because of two species of European birds that
were introduced to the United States: Weaver Finches (commonly known as
English House Sparrows) in 1850 and European Starlings in 1890.  These are
invasive species to native American birds and have multiplied to over a billion
individuals per species.  And they, too, are secondary cavity dwellers.  But,
do not migrate like Purple Martins and have completely taken over all their
natural nesting sites.  Worst of all, both species are
will attack and kill adult and young purple martins.  This is the reason why only
Purple Martins should be allowed to live in Purple Martin Houses (NEVER allow
other species to co-habitate with the Purple Martins in their housing systems).  
If the Purple Martins cannot find a suitable cavity upon their annual return,
they will not be able to raise any young that year. Today, the Purple Martin
population is only about 10% in size as compared to what it was in the early
1930's.  The end result is that, without human intervention (which means
putting up Purple Martin Housing Systems and maintaining them), Purple
Martins could very well become extinct and no longer entertain use with their
aerial maneuvers and appetite for all those nasty flying and biting insects.

Note:  In the southern states we are finding out that Purple Martin Landlords
who are putting up and using METAL housing systems are actually COOKING
approximately 40-50% of the eggs laid by the adult birds. We are asking that all
southern bird houses either be made of plastic (but not PVC) or wood. We have
received numerous reports from landlords of well-established colonies that the
adult purple martins have abandoned their metal houses because very few if
any of the eggs laid these last two very hot summers actually fledged out.

Purple Martin Propagators reason for being in business is to help ensure that
these birds stay around for many more generations of Americans to enjoy and
reap the benefits of their voracious appetite for flying insects.  We will only sell
and install the best
PolyGourd housing systems on the market so that Purple
Martins will continue to be a part of our natural and man-made surroundings.
Purple Martin Bird Houses are the best for
Controlling West Nile Virus and Zika Virus