Editing 1792: Bird/Plane/Superman

{{comic
| number    = 1792
| date      = January 30, 2017
| title     = Bird/Plane/Superman
| image     = bird_plane_superman.png
| titletext = You can apply special translucent films to your windows to help keep birds/Superman from accidentally flying into them.
}}

==Explanation==
This comic is a logical comparison of observations to resolve the [http://www.imdb.com/title/tt0034247/quotes?item=qt0317455 classic Superman catchphrase] of comic book bystanders: "Look, up in the sky... It's a {{w|Airplane|bird}}!... It's a {{w|Bird|plane}}!... It's {{w|Superman}}!", hence the title. Superman, a character originally created for comic books in the 1930s, is an alien with superpowers, including the power of unaided flight; hence the catchphrase exclaiming peoples' amazement. 

At the correct distance both birds, planes and the fictional Superman could be mistaken for each other. So this comic aims to help people identify the airborne object by listing on which properties they are alike and on which they are different. This problem was also mentioned in the title text of [[1633: Possible Undiscovered Planets]], putting Superman near the bird/plane boundary explaining why all this confusion has arisen.

The observations compared range from the mundane to the bizarre and they are listed and explained below in the [[#Table|table]]. Here some highlights are mentioned, but for all these there are much more detail below.

Some of the mundane observations are that birds don't fly around with people, while Superman can do it, and planes are meant for it;  and that the latter two are new "inventions", whereas birds have flown around for millions of years. 

Interestingly enough there are actually two observations that have check mark for all three; the first being that there are enthusiasts for all three different flying objects. And these will obsess over small color details in otherwise similar looking objects. The other common thing is that they all may have sex in midair. The possibility of that happening for the all three are discussed in the table. 

Three observations only counts for birds, where all those that do not count for birds do count for both planes and superman. Two of these relates to the fact that birds are eaten by cats and humans, the last is that birds flap their wings to fly, the others have other means of flight. There are observations that rules out only planes or only superman, but none that rules out only one of them at the same time as birds are ruled out.

There are also three direct jokes towards the bottom. The first is that {{w|David Attenborough}} may also have observed Superman's mating habits just like he has with birds in the documentary series {{w|The Life of Birds}}. The second is that not only birds poop in flight, but that Superman could and would also do so. And the third (and also final observation) is that not only birds chase insects to eat them, but Superman also chases them... though only when he is bored. These last three observations have that in common that the planes are left out of all of them, and the joke is always on Superman. As it has been before in [[1384: Krypton]] and [[1394: Superm*n]] (released just ten comics apart).

The title text refers to black stickers (decals) in the shape of an easily recognizable predatory bird, like {{w|falcons}} to enhance the visibility of clear glass windows or doors and scare smaller birds away before they crash into the window. This may actually not work very well according to this article: [https://www.allaboutbirds.org/why-birds-hit-windows-and-how-you-can-help-prevent-it/ Why Birds Hit Windows], where a falcon decal is also shown. But they are meant to warn birds away and according to this comic they could also prevent Superman from flying through your window (and thus also stop him from possibly just continuing through the building). They are not known to affect the risk of airplanes flying into the building.{{Citation needed}}

===Table===
{| class="wikitable"
!style="width: style="width: 55%;"| !!style="width: style="width: 15%;"| Bird !!style="width: style="width: 15%;"| Plane !! Superman 
|-
!colspan=4| Explanation
|-
! Carries people || || ✓ || ✓ 
|-
|colspan=4| Some birds are capable of flying off while carrying a small human away, but this happens extremely rarely (although hoax stories are often reported).  An {{w|Ostrich}} can easily carry a human; and this happens regularly in arranged {{w|Common ostrich#Racing|races}}. The context of the strip implies that it's referring to birds in flight, so flightless birds like ostriches are ignored.

Most planes are specifically designed to carry human passengers, although many are cargo planes with humans only acting as crew, and autonomous drones without humans also exist. 

Superman often carries other people with him, such as his {{w|Lois Lane|girlfriend}}, rescued victims or the various villains that people need to be rescued from.
|-
! Often flies in groups || ✓ || ✓ || 
|-
|colspan=4| Many types of birds fly in flocks, particularly during long-range {{w|Bird migration|migrations}}. Some birds often fly in the {{w|V formation}} which has also been {{w|V formation#Military flight missions|copied by planes}}. This formation has been used at least twice in xkcd in [[1440: Geese]] and recently in [[1729: Migrating Geese]] (notice the similarity in number of that bird comic compared to the one for this comic).

Planes sometimes fly in {{w|Formation flying|group formation}}, particularly when engaged in military operations where mutual support is tactically useful (or when conducting practice maneuvers for such operations). There are also many instances where plane need to enter a holding pattern before landing, sometimes with some planes already flying said pattern. This would create a group of planes, each performing the same movements at the same places.

Superman is a unique person, and thus does not fly in groups at all. While Superman occasionally operates alongside other flying superheroes, and in some stories is duplicated or split into multiple beings, Randall apparently considers these circumstances too unusual to meet the "often" qualifier.
|-
! Created in 20<sup>th</sup> century || || ✓ || ✓ 
|-
|colspan=4| Birds evolved from dinosaurs, appearing as early as the Late Jurassic period, roughly 150 million years ago. That birds evolved from dinosaur who also had wings with feathers before they evolved on to becoming birds has often been referenced by Randall in comics like [[1104: Feathers]], [[1211: Birds and Dinosaurs]] and the title texts of [[867: Herpetology]] and [[1527: Humans]].

The {{w|Wright Flyer#Flight trials at Kitty Hawk|first successful flight}} of a powered heavier-than-air craft took place on December 17, 1903 and was performed by the {{w|Wright brothers}}. While there are claims for successful powered flight before 1900, the Wright Flyer trials are the first proven instance of this kind of heavier-than-air flight.

Superman first appeared in {{w|Action Comics 1|''Action Comics'' #1}}, published in June 1938.
|-
! Uses magnetic navigation || ✓ || ✓ || 
|-
|colspan=4| Some types of birds use {{w|magnetoreception}} to navigate using the earth's magnetic field as a guide.

Artificial {{w|Compass#Magnetic compass|magnetic compasses}}, along with other navigational equipment, are used by planes.

Superman, while possessing a {{w|Powers and abilities of Superman|plethora of super-senses/powers}}, does not appear to be particularly sensitive to {{w|magnetism}}.
|-
! Enthusiast community obsesses over small coloration details || ✓ || ✓ || ✓ 
|-
|colspan=4| {{w|Birdwatching|Birdwatchers}} identify bird species by a range of characteristics, including small details in the bird's color pattern which identify one species apart from another.

Similarly, airplane hobbyists and {{w|Aircraft spotting|plane spotters}} take note of the colors of a plane's paint job and insignia.

Comics fans can similarly identify the artist and date of a depiction of Superman by the coloration and configuration of his costume and be obsessed with their favorite coloration being the canon. Some may also search for miscolored areas to identify a rare print error comic, which are worth a lot of money in some cases.
|-
! Preyed on by cats || ✓ || || 
|-
|colspan=4| {{w|Cats}} kill several billion birds a year, often - but not always - eating them.

There has never been a case of a cat successfully catching and eating a plane,{{Citation needed}}although there may be cases where cats have attempted to chase planes. There was a viral video uploaded to YouTube in 2015, in which a couple are climbing after taking off in an ultralight aircraft before discovering a cat, which stowed away in the plane's wing structure.

In the comics, Superman has never been eaten by a cat, although he has been [http://www.themarysue.com/wp-content/uploads/2011/03/power-girl-22.jpg devoured by a dinosaur]...
|-
! Occasional mid-air sex || ✓ || ✓ || ✓ 
|-
|colspan=4| Almost no bird species have sex in flight. Hummingbirds, for example, engage in courting behavior which one might falsely identify as sex (explained in this article [http://animals.howstuffworks.com/birds/hummingbird-sex1.htm Do hummingbirds have sex in midair?]). This article [http://www.livescience.com/38379-animal-sex-bird-sex.html Animal Sex: How Birds Do It] explains how birds in general have sex. However, this article [http://www.commonswift.org/Aerial-mating.html Aerial mating] points out that the common swift (Apus apus) engages in mid-air sex, an act presumably caught on video [https://vimeo.com/78453839 here].

{{w|Mile high club|Mid-air sex}} involving planes usually involves passengers (and potentially air crew), not the plane itself.  However, this could also be a metaphorical reference to {{w|Aerial refueling|in-flight refueling}} (such as the depiction, set to romantic music, in [https://www.youtu.be/Qs7EikHQGlA the opening scene] of the movie ''{{w|Dr. Strangelove}}'', a movie Randall has referenced before for instance in [[Media:1608 1020x1083y Torpedoes two steps above Runner with Beret Guy.png|this scene]] from [[1608: Hoverboard]]) It could also refer to [http://avstop.com/news/plantcity.html this incident] where one plane landed atop another in mid-air.

As for Superman, there have been occasional moments in the comics which indicate or at least imply that he sometimes engages in mid-air sex.
|-
! Eaten during seasonal feasts || ✓ || || 
|-
|colspan=4| {{w|Turkey (bird)|Turkeys}}, a type of bird, are eaten by Americans during {{w|Thanksgiving}}, a "seasonal feast" held on the fourth Thursday of November of each year. Britons eat Turkey or {{w|Goose}} at {{w|Christmas}}, in other countries it may be {{w|ducks}} instead.

It is unlikely that normal humans would eat a plane, however it has been done by {{w|Michel Lotito}} who has digested an entire {{w|Cessna 150|Cessna}} aircraft. However he used two years to consume the plane, so although he may have eaten some parts during holidays, he did not do it because there was a seasonal feast.

Superman is too strong and "made of steel" for him to let any human eat him. But as also mentioned above he has been [http://www.themarysue.com/wp-content/uploads/2011/03/power-girl-22.jpg devoured by a dinosaur] although that probably did not kill him, and does not seem to be linked to a holiday.
|-
! Propelled by flapping || ✓ || || 
|-
|colspan=4| Birds generate lift by flapping their wings, although there are multiple raptor species which hold their wings out in order to glide at high altitudes.

Planes have fixed wings, and fly by maintaining forward velocity and exploiting the aerodynamic effects of air flowing over the upper and lower wing surfaces, which are shaped and angled to produce lift. However, some experimental designs for some of the earlier planes made such as {{w|Leonardo Da Vinci}}'s Flying Machine that was propelled by flapping. 

Superman flies using superpowers which require neither wings nor flapping.
|-
! Sometimes loses ability to fly, needs to sunbathe to regain it || ✓ || || ✓ 
|-
|colspan=4| Birds can "lose" the ability to fly, if their wings are weighed down by water from swimming. One way for birds to dry out their wings is to [http://birding.about.com/od/birdbehavior/a/Bird-Sunning.htm sunbathe].

An airplane can lose its ability to fly, but no issues occurring in modern aircraft can be fixed by sunbathing, except in some {{w|Solar Impulse|experimental solar-powered aircraft}}.

As for Superman, he is at risk of losing his superpowers, including flight, with prolonged exposure to {{w|Kryptonite}}, which makes him weak. Also the rays from the sun at his home planet {{w|Krypton (comics)|Krypton}} can {{w|Superman II#Plot|remove his super powers}} as it happened in ''{{w|Superman II}}''. Superman's powers, including flight, are caused by "electromagnetic radiation from the rays of a yellow sun" (a fictional classification of stars that includes Earth's {{w|Sun}}), so on the occasion he loses his powers he can usually regain them through "sunbathing" here on Earth.
|-
! Can take a punch || || ✓ || ✓ 
|-
|colspan=4| Many birds are small and fragile creatures, whose {{w|Bird anatomy#Skeletal system|bone structures}} are meant to be light in order to fly, and thus are not very durable. If a man punched, say, a {{w|pigeon}}, he could probably break/dislocate most of its bones, either killing it immediately or leaving it in a state from which it will probably never ever recover on its own. However, there are definitely some big, {{w|flightless birds}} that could take a punch from a human such as ostriches and {{w|emus}}, but since both are large creatures that would probably react by {{w|Emu War|fighting back}}, it would not be wise to try. Also Randall is (again) plainly ignoring this type of birds as they cannot fly and this comic is about making mistakes regarding things flying through the air (typically far enough away from the observer to mistake a pigeon for a plane).

Planes are usually massive, or at least big enough to carry a human, and their structure is composed of fairly solid metals. However, ultralight aircraft are very light and have delicate structures, which may make it possible to damage the plane in some areas. However, a human punching an airplane is unlikely to result in significant damage (to the plane, at least, the human's hand is a different story.)

One of Superman's (the {{w|Man of Steel (film)|Man of Steel}}) trademark abilities is his near indestructibility; a punch from any regular human would not hurt him, but again hurt the hand.
|-
! Mating behavior often observed by a hidden David Attenborough || ✓ || || Not that we know of 
|-
|colspan=4| {{w|David Attenborough}} is an English broadcaster and naturalist, who produced a documentary series ''{{w|The Life of Birds}}''. Included in the series is an episode entitled "Finding Partners", which discussed {{w|Bird#Breeding|mating rituals of birds}}. That these can be very strange has been mentioned in the title text of [[1747: Spider Paleontology]], of course in relation to Dinosaur behavior.

Planes are inanimate objects with no mating behavior.{{Citation needed}} However, referring back to the observations made under the ''Occasional mid-air sex'' explanation it could be discussed if this was mating behavior. Also there are movies like ''{{w|Planes (film)|Planes}}'' and its {{w|Planes: Fire & Rescue|sequel}} has living planes, which could mate. But Randall may know for sure that Attenborough is not interested in those.

The comic states that we don't know for sure if Attenborough has observed Superman's mating behavior. As Superman doesn't exist,{{Citation needed}} Attenborough has not seen Superman in reality (which would lead to a "No" response), but maybe Attenborough has watched all the movies or read all the comics in which Superman courts {{w|Lois Lane}} just to observe Superman's (made up) mating behavior (which would lead to a "Yes" response). Since we do not know Attenborough's habits, this leads to Randall giving the "Not that we know of" response.
|-
! Capable of ''intentionally'' releasing poop mid-flight || ✓ || || ✓ 
|-
|colspan=4| Birds often poop during flight, often enough that people regularly get hit in the head by the poop, which has caused the unlucky people to come up with the [http://thepetwiki.com/wiki/Pets_and_Superstitions superstition] that it brings good luck. For birds it is just economical to shed excess mass when they are going to fly, and many birds poop just at take off. But on long flights it is the best use of resources to not carry extra weight along, that increases their efficiency. Unlike {{w|mammals}} who pee {{w|urea}}, {{w|Bird#Excretory system|bird poop}} is both pee and feces as birds only have one hole, a {{w|cloaca}}, and the black poop is surrounded by their pee which is the white stuff containing {{w|uric acid}}. Not peeing lots of water out reduces their water loss.

There have long existed urban myths about airplanes regularly discharging their septic tanks, resulting in blocks of blue ice crushing houses and people. This line refers to that myth, and the fact that it's untrue. A leaky septic disposal system can unintentionally discharge liquid waste while in flight, but there is no way for an airplane to intentionally release the sewage.

As Superman's physiology is nearly identical to that of a human, he is in theory capable of voluntarily voiding his bowels at any time, including during flight. There would be little reason for him to do so,{{Citation needed}}, but he presumably has the ability to do so.
|-
! Chases and eats bugs || ✓ || || Only when bored 
|-
|colspan=4| Many bird species prey on insects and similar-sized animals.

Planes often fly into and kill insects (as well as birds, and sometimes humans), but this is unintentional, planes never pursue the insects, and don't "eat" them in the traditional sense.

Superman is not known for eating insects, but Randall implies that he may do so, but only when he's bored. This is a humorous suggestion that Superman engages in odd behavior for a lack of anything else to do. 
|}

==Transcript==

{| class="wikitable"
! !! Bird !! Plane !! Superman
|-
| Carries people || || ✓ || ✓
|-
| Often flies in groups || ✓ || ✓ ||
|-
| Created in 20<sup>th</sup> century || || ✓ || ✓
|-
| Uses magnetic navigation || ✓ || ✓ ||
|-
| Enthusiast community obsesses over small coloration details || ✓ || ✓ || ✓
|-
| Preyed on by cats || ✓ || ||
|-
| Occasional mid-air sex || ✓ || ✓ || ✓
|-
| Eaten during seasonal feasts || ✓ || ||
|-
| Propelled by flapping || ✓ || ||
|-
| Sometimes loses ability to fly, needs to sunbathe to regain it || ✓ || || ✓
|-
| Can take a punch || || ✓ || ✓
|-
| Mating behavior often observed by a hidden David Attenborough || ✓ || || Not that we know of
|-
| Capable of intentionally releasing poop mid-flight || ✓ || || ✓
|-
| Chases and eats bugs || ✓ || || Only when bored
|-
|}

{{comic discussion}}

[[Category:Charts]]
[[Category:Aviation]]
[[Category:Animals]]
[[Category:Comics featuring real people]]
[[Category:Sex]]
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