There is a detail of the Cappadocian landscape that almost everyone photographs without knowing what they are photographing. On the valley cliffs, well above the ground and in places you cannot reach on foot, there are hundreds of small rectangular openings with white frames.
They look like the windows of abandoned dwellings and they are not. They are the entrances to an agricultural system that sustained the district for centuries.
01 The holes that are not windows
A Cappadocian dovecote, güvercinlik in Turkish, is a chamber cut into the tuff with hundreds of niches opened in the walls and ceiling, each just big enough for a pigeon to nest. The largest housed up to a thousand birds.
Only two things open to the outside: one or more small ports through which the birds come and go, and a small access door for a person, almost always deliberately awkward, at a point you have to reach with a rope or along a narrow ledge.
The difficulty of access is not an oversight: it is the design. A dovecote on a vertical cliff is safe from foxes, from dogs and from anyone who might want to take the birds or the contents.
02 The problem they solved
To understand why anyone would spend months cutting a dovecote into a cliff, look at the soil. The district is covered in tuff, a compacted volcanic ash that drains well but is poor in organic matter and in nitrogen.
On that soil vines and fruit trees are grown, and they need exactly what is missing. And here 418 millimetres of rain fall a year, with only 70.7 between June and September: there is no pasture to keep livestock in quantity, so there is no animal manure available at scale either.
Pigeon droppings solve both at once. They are among the natural manures richest in nitrogen, the birds feed themselves in the fields at no cost to the farmer, and they return every night to the same place, which is where the product accumulates.
Put another way: the dovecote is a fertiliser factory that consumes nothing and that draws on a resource, the seeds of the fields, that would otherwise go unused. That is why there are thousands.
The birds feed themselves in the fields and come back to the same place every night: the dovecote collects the manure at no cost.
03 How a dovecote is built
The interior answers a very precise programme. The chamber is cut with its mouth facing an orientation that gets morning sun and is sheltered from the prevailing wind, and the walls are covered with staggered niches to use all the surface.
The floor is smooth and gently sloping, because that is where the material to be collected accumulates. And the outside ports are narrow and sharp-edged for the same reason as a letterbox: they let through whoever has to pass and nobody else.
Collection was done once a year, usually at the end of winter, before the breeding season and exactly when the manure was needed for the vines. The owner went in through the small door, emptied the chamber and closed it again.
04 Why they are painted
What makes these dovecotes more than a store is the exterior finish. The frames of the ports are limewashed white, and in many cases surrounded by geometric motifs painted in red, ochre and black.
The practical explanation is that a pigeon locates its nest by sight, and a pale patch on a tuff wall is visible from a distance. The limewash is signage, not ornament.
But the elaboration of some fronts goes far beyond what that function requires. There are dovecotes with carved arches, pilasters and cornices, worked with a care that in the same valley the dwellings did not always receive.
That says something about the value of the system. A well-placed dovecote was an asset that was inherited, sold and disputed, and its façade announced as much.
05 What ended the system
The end was in no way dramatic. Over the twentieth century, industrial fertiliser reached the district and solved the same problem in a sack, with nothing to excavate, no birds to keep and no cliff to climb once a year.
From then on the dovecotes stopped being maintained. Many are still occupied by feral pigeons, but the cycle broke: nobody collects, nobody limewashes and the rain is erasing the paint from the frames.
The structure remains, which is what you see today: a network of thousands of constructions spread across the cliffs of a whole district, with no function, and which most visitors take for houses.
There is one detail worth noting without overstating it: the droppings accumulated inside some chambers have protected what lay beneath them for decades, and in several cases have preserved old plaster and paint that outside would have been lost.
06 How to see them
The obvious place is Güvercinlik valley, four kilometres of walking between Göreme and Uçhisar whose name means exactly that: pigeon valley. You walk along the floor and the openings are above you, on both sides.
But the interesting part is that they are not only there. Once you know what you are looking for, they appear in almost every valley in the province and on the cliffs behind the villages. Binoculars are worth carrying: the painted frames only show up close.
And the check that changes how you look is one of height. Notice where each dovecote's access door is and work out how anyone reached it. The answer, almost always, is that somebody climbed with a rope to collect a sack of manure.
