Modern science now incorporates canines into many different facets of conservation. From searching for subterranean water pollution to guarding threatened penguin colonies, dogs now have a paw in many important projects to improve our planet. As we examine the multitude of ways conservation canines aid modern conservation practices, we should realize how dogs ever came to be used for field biology in the first place. A battle against an invasive species rampaging New Zealand back in 1891 is when canines received their introduction into conservation.

The story is both a triumph…and a tragedy.

We begin the saga with the plight of the kakapo (Strigops habroptilus), a large flightless parrot indigenous to New Zealand.  For millions of years, the kakapo, otherwise known as the ‘owl parrot’ due to its nocturnal habits, perused around the New Zealand island landscapes in search of seeds, fruits, some plants, and even tree bark.  The strictly herbivorous parrot only had a few birds of prey as natural predators; therefore, it developed a nocturnal way of life to avoid the diurnal raptors.

Weighing up to 9 pounds at maturity, kakapos are the heaviest living parrot species and the only flightless bird to perform leks (a mating ritual where males compete for female attention).  Although the large bird is unable to fly, it possesses strong legs allowing it to both run and climb trees.  Still, without the ability to quickly escape, kakapos would be vulnerable to any land predator.  Unfortunately, such a capable predator was intentionally introduced to their ecosystem in the late 1800s.

The trouble began sometime in the 1860s when some sportsmen introduced the non-native rabbit to the New Zealand islands for easy hunting quarry.  As with most introduced alien species, the invasive rabbits quickly multiplied and expanded far beyond the reach of hunting control.  Major crop and forest devastation ensued just within a few years after introduction.  In response, the government began releasing droves of non-native weasels and ferrets to hopefully quell the rabbit invasion.  However, instead of dining upon the fast and elusive rabbits, the mustelids turned their voracious appetite toward the relatively helpless kakapo.

Within only a couple of years, the kakapo population was decimated while other species such as ducks and kiwis even became extinct due to weasel predation.  After a slow acknowledgment of the problem, the government finally began efforts to curb the slaughter of the kakapo and other native species.  The first stage was to create a sanctuary for the remaining kakapos, which became Resolution Island, a rugged wild island thought inaccessible to the invading carnivores.

Richard Henry was one of seven applicants for the first manager position of the newly formed wildlife sanctuary.  The middle-aged handyman held various previous jobs since moving to New Zealand from Ireland years before.  Being a former bird hunter, he witnessed first-hand how the kakapo population was steeply declining and became passionate about preserving kakapos.  He lobbied the government to act in saving them, however, without any academic scientific background, he was ignored by most.

Depressed over his life situation, including divorce, loss of job, and lack of respect for his kakapo work, Mr. Henry attempted to take his own life…but the gun misfired.  While departing the hospital a few months after the bullet was removed from his skull, he learned he was awarded the caretaker position of Resolution Island—a dream job come true!

During the first 6 years, Mr. Henry captured over 500 kakapos on the mainland, placed the cages in a small boat, and rowed them by hand across the treacherous ocean to Resolution Island.  In 1895, to assist in locating the giant parrots, he trained his trusted fox terrier “Lassie” to seek them out through scent.  The pioneering conservationist then would follow the sound of the bell on Lassie’s collar to safely capture the imperiled parrots for transport to safety.

Continue the story on our blog!