# How do animal homing devices work?

**URL:** <https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077>\
**Category:** Factual Questions\
**Created:** [May 2, 2006, 8:07am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077 "2006-05-02T08:07:38Z")\
**Posts on this page:** 11\
**Page:** 1

<div class="post-metadata">

**Author:** ![Buck\_Rogers](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@Buck\_Rogers](https://boards.straightdope.com/u/Buck_Rogers)\
**Post date:** [May 2, 2006, 8:07am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/1 "2006-05-02T08:07:38Z")

</div>

Here is a small article on homing pigeons: [http://www.cnn.com/2004/TECH/science/02/06/homing.pigeons.reut/](http://www.cnn.com/2004/TECH/science/02/06/homing.pigeons.reut/)

How do dogs, cats and for that matter these pigeons complete an **accurate trip for the first time.** I understand routine trips that are learned, but what about the first time? The word instinct is too general.

I’ll give an example. I have these $1500 Hybred cats that are part Asian leopard. If I let them roam free they would be stolen. I keep them indoors, in a cage outdoors or on a leash. One day I drove over to a freinds house to show them my cat. I walk him on a leash and he breaks away. I’m 5 miles from my house and sick to my stomach. I look for him day and night, not to be found. 3 days later he shows up at my house. He never saw the 5 mile point A to Point B trip before.

**How did he know to make his way back home? What homing senses did he use?**

If there is ever a 6 sense this has to be it, I would think.

---

<div class="post-metadata">

**Author:** ![Blake](https://avatars.discourse-cdn.com/v4/letter/b/a9a28c/32.png) [@Blake](https://boards.straightdope.com/u/Blake)\
**Post date:** [May 2, 2006, 8:27am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/2 "2006-05-02T08:27:17Z")

</div>

> [@Buck Rogers](#):
>
> How do dogs, cats and for that matter these pigeons complete an **accurate trip for the first time.**

In the case of pigeons they memorise the landmarks along the way. Homing pigeons can’t simply be taken someewhere totaly foreign and still have any reasonable chance of making it home. They need to spend some time getting used to the area first.

> [@](#):
>
> I have these $1500 Hybred cats that are part Asian leopard.

They may be part leopard cat, but they are certainly not part Asian leopard which are the same as African leopards and quite incapable of hybridising with house cats…

> [@](#):
>
> 3 days later he shows up at my house. He never saw the 5 mile point A to Point B trip before.How did he know to make his way back home? What homing senses did he use?

No homing senses. Luck played a large role. Cats, and especially Toms, have territories and your cat would have been forced to keep moving by the reisident Toms. That movement eventually brought him close enoiugh to your house for him to smell it. Cats have phenomenal senses of smell, and in clean conditions a cat would have no trouble smelling his own home form a mere 5 miles away. Even in a city he may well have been able to smell it at that range, and certainly within a couple of miles.

There’s no need for any mysterious sixth sense, the cat simply wandered around until he got close enough to home to smell it.

---

<div class="post-metadata">

**Author:** ![Buck\_Rogers](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@Buck\_Rogers](https://boards.straightdope.com/u/Buck_Rogers)\
**Post date:** [May 2, 2006, 8:52am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/3 "2006-05-02T08:52:00Z")

</div>

> [@Blake](#):
>
> They may be part leopard cat, but they are certainly not part Asian leopard which are the same as African leopards and quite incapable of hybridising with house cats…

Mine are part asian leopard, I have papers, look here: [CNN.com - Secret of homing pigeons revealed - Feb. 6, 2004](http://www.cnn.com/2004/TECH/science/02/06/homing.pigeons.reut/)

Not that it is the reason, it’s just that is what mine are bred from. These are hybred F 1’s. Which mean: A first generation cross is called an F1.

---

<div class="post-metadata">

**Author:** ![Blake](https://avatars.discourse-cdn.com/v4/letter/b/a9a28c/32.png) [@Blake](https://boards.straightdope.com/u/Blake)\
**Post date:** [May 2, 2006, 9:03am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/4 "2006-05-02T09:03:21Z")

</div>

> [@Buck Rogers](#):
>
> Mine are part asian leopard, I have papers, look here: [http://www.cnn.com/2004/TECH/science/02/06/homing.pigeons.reut/](http://www.cnn.com/2004/TECH/science/02/06/homing.pigeons.reut/)

Umm, how does a story about pigeons prove that your cats are part leopard?

Unless there has been some breakthrough in inter-generic hybridisation that has totally slipped under my radar your pets are hybrids of Asian leopard cats and house cats.

Leopard cats are no more leopards than sausage dogs are sausages. It’s just a descriptive name.

---

<div class="post-metadata">

**Author:** ![Buck\_Rogers](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@Buck\_Rogers](https://boards.straightdope.com/u/Buck_Rogers)\
**Post date:** [May 3, 2006, 5:00am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/5 "2006-05-03T05:00:25Z")

</div>

> [@Blake](#):
>
> Umm, how does a story about pigeons prove that your cats are part leopard?
> 
> Unless there has been some breakthrough in inter-generic hybridisation that has totally slipped under my radar your pets are hybrids of Asian leopard cats and house cats.
> 
> Leopard cats are no more leopards than sausage dogs are sausages. It’s just a descriptive name.

It has nothing to do with it. The gentlemen stated they were not part Asian Leopards, and I was simply showing the bread line of the first generation that I purchased. The fact I have papers proves to me they were first generation when I was breeding them.

I don’t think he wandered back to my house for 5 miles by accident. I think they have some type of homing sense. I have heard dogs traveling hundreds of miles to a family that moved into a new home and left them.

It must be unknown.

---

<div class="post-metadata">

**Author:** ![Blake](https://avatars.discourse-cdn.com/v4/letter/b/a9a28c/32.png) [@Blake](https://boards.straightdope.com/u/Blake)\
**Post date:** [May 3, 2006, 5:23am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/6 "2006-05-03T05:23:17Z")

</div>

> [@Buck Rogers](#):
>
> It has nothing to do with it. The gentlemen stated they were not part Asian Leopards, and I was simply showing the bread line of the first generation that I purchased. The fact I have papers proves to me they were first generation when I was breeding them.

I’m sorry but you are making no sense whatsoever.

Let’s just clear this up shall we? Do you now undertstand that your cats are not part Asian leopard, and in fact have aboslutely no Asian leopard, nor are they part African leopard? They may or may not have some leopard-cat in their ancestry, but do you undertsand that that is not the same as being part leopard?

> [@](#):
>
> I don’t think he wandered back to my house for 5 miles by accident. I think they have some type of homing sense.

And what evidence is that based on? We know that cats have a sense of smeel that is quite capable of ddetecting tehir own odour from several miles away, why do you feel the need to invoke mysterious sixth senses?

> [@](#):
>
> I have heard dogs traveling hundreds of miles to a family that moved into a new home and left them.

Uh huh. So not only do animals have a mysterious homing sense, thye have an ability to project that into the future to identify homes _they have never lived in_? You are proposing that my dog can find its way to a house that I own;t even buy until 2025. Do you realise how absurd that sounds?

> [@](#):
>
> It must be unknown.

Or, more rationally, it doesn’t exist. Animals have a lot of senses that are better than humans and some have senses that apparently humans lack, but none of those is supernatural, or unknown, or mysterious.

---

<div class="post-metadata">

**Author:** ![Colibri](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/colibri/32/1841_2.png) [@Colibri](https://boards.straightdope.com/u/Colibri)\
**Post date:** [May 3, 2006, 2:20pm UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/7 "2006-05-03T14:20:46Z")

</div>

> [@Blake](#):
>
> In the case of pigeons they memorise the landmarks along the way. Homing pigeons can’t simply be taken someewhere totaly foreign and still have any reasonable chance of making it home. They need to spend some time getting used to the area first.

This is incorrect. While homing pigeons use landmarks (and olfaction) for short-distance navigation near the home loft, they can be taken to completely unfamiliar sites hundreds of kilometers away and still find their way home.

[Pigeon navigation](http://www.albertaclassic.net/suncomp.php)

> [@](#):
>
> The ability of homing pigeons to navigate back to their “home” loft from distant and unfamiliar release sites has provided an excellent means by which to investigate the importance of various external cues in spatial navigation. When reared in a particular loft, a young pigeon can be transported hundreds of miles away and successfully find its way home from the release site.

Birds use a variety of multiply-redundant techniques to navigate. They have both a “map,” telling them where they are relative to where they want to go, and a “compass,” which permits them to determine the direction to travel in order to get there. They are known to use landmarks, olfaction, celestial cues, and magnetism to navigate. The relative importance of these different cues may vary between species.

[This site](http://www.paulnoll.com/Oregon/Birds/Avian-migration.html) has some additional information about bird navigation and the methods they use to find their way.

> [@](#):
>
> Although homing ability has been fostered in pigeons by careful breeding and selecting of stock, it appears that training is not always necessary: Many species of wild birds perform similarly remarkable feats. One such bird is the migratory Manx Shearwater. . . . The ease of locating and observing their nests make shearwaters ideal subjects for homing experiments.
> 
> In one such experiment, adult shearwaters taken from nesting burrows off the coast of Wales were flown thousands of miles from their nests to places in Europe and North America that were completely unfamiliar to them. Most of the birds returned to their burrows at astonishing speeds, speeds that would not have been possible had they wandered randomly or searched for the way home over a wide area. Even traveling over what to our eyes appears to be trackless ocean, these birds demonstrated that they knew the precise direction in which thy needed to go. Ornithologists believe that similar abilities are responsible for the return of small land birds to previous nesting and wintering places at the ends of long migrations.

---

<div class="post-metadata">

**Author:** ![Colibri](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/colibri/32/1841_2.png) [@Colibri](https://boards.straightdope.com/u/Colibri)\
**Post date:** [May 3, 2006, 5:49pm UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/8 "2006-05-03T17:49:37Z")

</div>

[This article](http://www.bear.org/Black/Articles/Home_Sweet_Smelling_Home.html) discusses homing in mammals, especially bears. In mammals in particular (most of which have much better senses of smell than birds), odor cues may play a very large role in navigation. While entirely speculative at this point, it is possible they may also use magnetic cues like birds.

It is most likely that the cat in the OP, whatever its identity, was using odor cues to orient, especially since it had sometimes been kept outside near its home. Five miles should be within the capability of many carnivores. It seems that bears at least can do much better than this, although they and canids generally have better senses of smell than felids.

---

<div class="post-metadata">

**Author:** ![Backwater\_Under\_Duck](https://avatars.discourse-cdn.com/v4/letter/b/ba8739/32.png) [@Backwater\_Under\_Duck](https://boards.straightdope.com/u/Backwater_Under_Duck)\
**Post date:** [May 4, 2006, 12:24am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/9 "2006-05-04T00:24:02Z")

</div>

[_Asian Leopard Cat_](http://www.hdw-inc.com/asianleopardcat.htm)  
What a pretty puss!  
[More.](http://www.bengalcat.co.uk/pet/alc/)

---

<div class="post-metadata">

**Author:** ![Fridgemagnet](https://avatars.discourse-cdn.com/v4/letter/f/22d042/32.png) [@Fridgemagnet](https://boards.straightdope.com/u/Fridgemagnet)\
**Post date:** [May 4, 2006, 1:12am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/10 "2006-05-04T01:12:47Z")

</div>

Anecdotal braindump: Pigeons get lost if you strap a magnet to their heads. Cats get lost even without magnetic interference, though every now and then some cat somewhere performs some amazing feat of navigation and endurance, and often dumb stubborness when they insist on returning to an old address. I’ve heard that having to cross a water course stuffs a cats homing skills somewhat, so maybe in the feline case a scent trail is important.

---

<div class="post-metadata">

**Author:** ![Lissa](https://avatars.discourse-cdn.com/v4/letter/l/85f322/32.png) [@Lissa](https://boards.straightdope.com/u/Lissa)\
**Post date:** [May 4, 2006, 1:20am UTC](https://boards.straightdope.com/t/how-do-animal-homing-devices-work/355077/11 "2006-05-04T01:20:47Z")

</div>

> [@Blake](#):
>
> Uh huh. So not only do animals have a mysterious homing sense, thye have an ability to project that into the future to identify homes _they have never lived in_? You are proposing that my dog can find its way to a house that I own;t even buy until 2025. Do you realise how absurd that sounds?

In his defense, it’s not the first time I’ve heard it. I’ve seen it reported in newspapers\* and people have told me stories about pets being lost by owners who were moving and then have had the pet show up at their new home. My mind insists the last I heard a tale of this ilk, it was about a cat.

I had always speculated if these stores have any merit that perhaps the animal was following a faint scent trail left by the car/van, and found places where the family had stopped to rest and tracked them that way.

\*Of course, this may be an example of an urban legend getting reported as fact which happens every now and again.
