These slides includes pictures of flightless birds and migration of birds in different seasons

1. Flightless birds and Migration
of birds
Sana Ahmed
Roll no. 22

2. Flightless birds
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Also called Running birds- lack ability to fly
Have smaller wings
Keel absent
Easiest to take care in captivity
More feathers than flying birds

3. Examples of Flightless birds..
Ostrich (Struthio camelus)

4. Emu (Dromaius novaehollanidae)

5. Kiwi (Apteryx australis)

6. Cassowary (Casuarius bennetti)

7. Rhea (Rhea americana)

8. Penguin (Pygosclis papua)

9. Flightless cormorant (Phalacrocorax harrisi)

10. Kakapo (Strigops habroptilus)

11. Migration of birds
• Flying birds do seasonal migration
• First recorded 3000 years ago by ancient
Greek authors Homer and Aristotle
• Migratory birds pay high costs in predation
and mortality
• Time of migration is controlled by different
environmental changes

12. Types of migration
•Short distance migration
•Long distance migration

13. Short distance migration
Merlin
Pied thrush

14. Wallcreeper
Woodland Kingfisher

15. Long distance migration
Arctic tern
Humming bird

16. Warbler
Wader

17. Migration triggers
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Changes in day length
Changes in food supplies
Lower temperature
Genetic predisposition
Hormonal changes

18. Threats to migratory birds

19. Conservation