Monticola solitarius
Silhouette: Martin Bulla, based on François Desbordes' illustration · PhyloPic
In 3 days <5%
The blue rock thrush (Monticola solitarius) is a species of chat. This thrush-like Old World flycatcher was formerly placed in the family Turdidae. It breeds in southern Europe, northwest Africa, and from Central Asia to northern China and Malaysia. The blue rock thrush is the official national bird of Malta.
The blue rock thrush was described by Carl Linnaeus in 1758 in the 10th edition of his Systema Naturae under the binomial name Turdus solitarius. The type locality is Italy. The scientific name is from Latin. Monticola is from mons, montis "mountain", and colere, "to dwell", and the specific epithet solitarius means "solitary".
The rock thrush genus Monticola was formerly placed in the family Turdidae but molecular phylogenetic studies have shown that the species in the genus are more closely related to members of the Old World flycatcher family Muscicapidae.
There are five recognised subspecies: Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Naha | 🇯🇵 Japan | |
| 2 | Busan | 🇰🇷 South Korea | |
| 3 | Algiers | 🇩🇿 Algeria | |
| 4 | Osaka | 🇯🇵 Japan | |
| 5 | Naples | 🇮🇹 Italy | |
| 6 | Hiroshima | 🇯🇵 Japan | |
| 7 | Kitakyushu | 🇯🇵 Japan | |
| 8 | Davao City | 🇵🇭 Philippines | |
| 9 | Đà Nẵng | 🇻🇳 Vietnam | |
| 10 | Kaohsiung | 🇹🇼 Taiwan |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Ueno Zoo | 🇯🇵 Japan | |
| 2 | Zoopark Limpopo | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Blue Rock-Thrush sighting in Kolkata on a given day, based on 23 verified sightings from GBIF citizen-science data. It is the 214th most-seen of the 247 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Blue Rock-Thrush in Kolkata on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Blue Rock-Thrush sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
39th of 45
Of the 45 cities where we can rate Blue Rock-Thrush sightings, Kolkata ranks 39th at under 5%. The best odds are in Naha (Japan, about 50%), Busan (South Korea, about 20%) and Algiers (Algeria, about 20%).
GBIF citizen-science records
It is estimated from how often the Blue Rock-Thrush is recorded against all the birds logged in Kolkata (23 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
