Discover the World of Birds
Based on Prof. Çağan Hakkı Şekercioğlu's 26 years of research
Explore BIRDBASE — the world's most comprehensive bird database covering 11,589 species.
Powerful Tools for Ornithology
Everything you need to research and analyze avian biodiversity.
Bird Database
Browse detailed profiles with taxonomy, ecology, and physical traits.
Taxonomy Tree
Navigate the complete phylogenetic tree from Order to Species.
Analytics
Visualize correlations, distributions, and scatter plots.
Reports
Generate AI-powered summaries and evolutionary insights.
Ornithological Statistics
Key metrics and visualizations from the world's most comprehensive bird database.
11,589
Total Species
1,292
11.2%
Threatened
165
Since 1500
Extinct
91
Species
Flightless
Conservation Status
IUCN Red List classification of 11,195 assessed species
Least Concern
8,741 (78.1%)
Near Threatened
935 (8.4%)
Vulnerable
693 (6.2%)
Endangered
395 (3.5%)
Critically Endangered
204 (1.8%)
Extinct
165 (1.5%)
Data Deficient
38 (0.3%)
Possibly Extinct
18 (0.2%)
Extinct in Wild
5 (0.0%)
Dietary Guilds
Primary diet classification showing ecological roles
Invertebrate
6,221
Fruit
1,328
Omnivore
1,099
Seed
851
Nectar
594
Herbivore
425
Vertebrate
341
Fish
289
Carnivore
217
Other
224
Global Biodiversity Distribution
Species count by biogeographic realm
Habitat Preferences
Primary habitat distribution across species
Body Mass Distribution
From tiny hummingbirds (2g) to giant ostriches (114kg)
Elevational Distribution
Average elevation range across species
Clutch Size Distribution
Number of eggs per breeding attempt (8,261 species)
🥚 Most birds lay 1-4 eggs • Waterfowl & gamebirds can lay 15+ eggs
Incubation Period
Days from laying to hatching (3,113 species)
🐣 Songbirds: ~14 days • Albatrosses: up to 80+ days
Fledging Period
Days from hatching to first flight (2,720 species)
🕊️ Precocial chicks leave nest quickly • Albatross chicks need ~280 days
Habitat Specialists
Species dependent on a single habitat type (2,384 species)
Forest
2,030 (85%)
Shrub
94 (4%)
Wetland
66 (3%)
Grassland
56 (2%)
Woodland
44 (2%)
Coastal
36 (2%)
Sea
20 (1%)
Riparian
15 (1%)
Rocky
13 (1%)
Other
10 (0%)
🌲 85% of habitat specialists are forest-dependent birds
Dietary Specialists
Species eating only one food type (4,382 species)
Invertebrate
3,491 (80%)
Fruit
355 (8%)
Seed
257 (6%)
Vertebrate
146 (3%)
Fish
46 (1%)
Nectar
43 (1%)
Plant
23 (1%)
Scavenger
20 (0%)
Ovivore
1 (0%)
🦗 80% of diet specialists are insectivores
Flight Capability
Ability to fly across all species
🦤 Flightless birds include penguins, ostriches, kiwis & island endemics
Movement Patterns
Migration and mobility behaviors
🌍 49% sedentary • Arctic Tern migrates 70,000+ km/year
Nest Architecture
Primary nest construction types
Cup/Bowl
2,958
Cavity (tree)
1,128
Sphere
610
Platform
538
Scrape
503
Pendant
377
Dome
376
Burrow
249
Half cup
235
No nest
194
Social Structure
Primary social organization patterns
Mating Systems
Reproductive pair bonding strategies (3,358 species)
💕 82% monogamous • Albatrosses mate for life (~50 years)
Conservation Hotspots
Threatened species by biogeographic realm
Based on the research of
Prof. Çağan Hakkı Şekercioğlu
Professor of Ornithology, Conservation Biology & Wildlife Ecology
University of Utah Biology • Koç University Molecular Biology and Genetics
"After 26 years of work that began during my PhD, we have published BIRDBASE, the world's first and most comprehensive bird database covering 11,589 bird species. You can find information on every bird species in this publicly available resource."