10 Fun Facts About the Mourning Dove

Wing whistlers, chaotic nesters, and ... milk drinkers? These birds may be common, but they鈥檙e anything but boring.
Two doves stand on a rock gently preening each others necks against a green out-of-focus background.
Mourning Doves. Photo: Douglas DeFelice/爆料公社 Photography Awards

The melancholy sound rings out across North America: coo-AHH, cooo, coo, cooo. It鈥檚 this familiar, wistful song that gives the Mourning Dove its name (and sometimes gets mistaken for an owl鈥檚 hoot).  Mourning Doves, with their plump, brownish-gray bodies and long, pointy tails, are a common sight , living year-round from Mexico up to southern Canada across much of the United States. These birds鈥攍ike their cousins, the Rock Pigeons鈥攁re often found near humans, whether gobbling up seeds under a feeder, perching on a telephone wire, or building a nest in a questionable location. Read on to learn more about this beloved neighborhood bird.

1) The species鈥 scientific name, Zenaida macroura, is also an ID hint: 鈥渕acroura鈥 comes from the Greek words for 鈥渓ong tail.鈥 The Mourning Dove鈥檚 tail鈥攕lender, tapered, and with white-tipped outer feathers鈥攐ffers a key clue to tell it apart from its cousins like the Eurasian Collared-Dove and White-winged Dove, whose tails end in square tips. 

2) Notoriously skittish, Mourning Doves make a sharp whistling sound when they take flight. The noise doesn鈥檛 come from their beaks, though鈥攊t鈥檚 actually made by their wings as air rushes through their feathers and causes them to vibrate. The sound can also serve as an : Researchers have found that playing recorded wing-whistles from startled doves can spur other birds to take off, too.

3) These doves are not dainty eaters. When they find a food source鈥攑referably, a bunch of seeds on the ground鈥攖hey鈥檒l quickly grab as much as they can manage, storing their haul in a throat pouch called the crop. Then, they鈥檒l fly off to a safe spot to work on digesting. On average, Mourning Doves will eat about of their body weight every day; one champion eater was recorded racking up 17,200 bluegrass seeds in its crop at once. 

4) When you hear a Mourning Dove鈥檚 familiar cooing, the song is almost always coming from a male looking for a mate. Males will claim a favorite 鈥渃ooing perch,鈥 a prominent spot where they can catch the attention of females with their songs. They鈥檒l even defend their favorite singing sites from other males who try to land there. 

5) Mourning Doves are known for building their nests fast and flimsy. After a pair picks a site, the males will bring back twigs and stems for the females to weave into a loose pile鈥攐ften so loose that you can see the eggs through the bottom. And they鈥檙e not very picky about location: While doves often seek out trees or shrubs, they鈥檙e just as likely to nest in flower pots, cacti, or air conditioners. (There鈥檚 even an entire dedicated to the surprising鈥攁nd often silly鈥攑laces doves will nest.)

6) Seasonally monogamous, Mourning Doves are prolific breeders. In warm climates, a couple can raise as many as six broods in a single year. The female lays two white eggs at a time and will trade off incubation duties with her partner for the two weeks it takes them to hatch.

7) In the first few days of a young Mourning Dove鈥檚 life, both parents will feed chicks what鈥檚 known as 鈥渃rop milk鈥 or 鈥pigeon milk鈥濃攁 nutrient-rich substance with a texture like cottage cheese. The so-called milk is secreted by cells in the crop, then regurgitated up into a tasty meal for baby doves, which are also called squabs. While this feeding strategy is shared across the pigeon and dove family, only a handful of other birds use 鈥渕ilk鈥 to feed their young, including flamingos and penguins. And the stuff packs a nutritional punch: Researchers found that when they fed crop milk to baby chickens instead of their usual diet, it .

8) Around the feeder, science shows that Mourning Doves are, well, kind of chill. Researchers analyzed feeder interactions reported by bird watchers across the country to see . They found that, while bigger birds generally came out on top during squabbles, Mourning Doves ranked lower than expected despite their bulky size. Warblers and Downy Woodpeckers, meanwhile, proved surprisingly feisty and ranked toward the top. (Still, Mourning Doves did hold their own against some rivals in the feeder wars.)

9) The Mourning Dove is one of North America鈥檚 most adaptable species, thriving in a wide range of habitats from coast to coast. Preferring open areas like farmland, parks, and backyards over dense forest, these doves can also tough it out in harsh habitats like the Southwest desert, where their ability to drink brackish, or slightly salty, water鈥攗p to around half the salinity of seawater鈥攚ithout getting dehydrated gives them an advantage.

10) Mourning Doves, along with the rest of the pigeon and dove family, are some of the rare bird species that can suck up liquid through their beaks like a straw, instead of having to tilt their heads back and let gravity do the work. The birds seem to pump their tongues like pistons to create a suction process like a vacuum pump, according to a that took X-ray videos of pigeons to figure out how they drink. This method lets doves drink quickly, minimizing the time they may be vulnerable to predators.