Common Bird Monitoring

CBMP Citizen Science initiatives in India


Common Bird Monitoring is a citizen science Programme, objectives of the programme is to involve more and more people to observe the birds which are in their backyard or where they are regularly visiting; there are several existing good initiatives where people are recording birds. We need to be able to accurately monitor trends in common birds. Consequently, we are starting a Common Bird Monitoring Programme in India.

The main aim of CBMP

1) To observe and report the birds with scientific methodology so as to get more authentic data.

2) To collect the data, ideally, three times in a year, so that in the long term, we can get information about the changes in common bird populations.

Why we count the Common Birds?

 Due to urbanization, industrialization, increasing use of automobiles, even common birds are in trouble. For example House Sparrow numbers are considered to be declining in cities. Mostly in urban areas, due to concretization, developmental activities disturb many bird species living in that area. So, to know current status of common birds it is necessary to monitor these common species.


Different census methods are used for sampling bird population depending on the species, habitat and terrain type. When a particular method is selected not on objective ecological consideration but on the basis of preconceived notions, fascination and individual liking, the result are often inadequate for useful interpretation.

For monitoring the birds we can use a scientifically robust model around the areas where those people live and monitor the progress over the years. To observe the birds basically we can use the following method.

Line Transact Method:-

 This method is practical and efficient. Line transect method is based on the theory of walking along a predetermined route at a fixed pace (speed) to record the birds on or near the line.

With the help of these methods you can observe the birds and all your observation are noted down in a given data sheet format. If there are any changes or suggestion then inform to us.

For more details:-

Nandkishor S. Dudhe, 
Research Assistant, IBA programme,
Bombay Natural History Society,
Hornbill House, Dr. Salim Ali Chowk,
Opp. Lion Gate,  Shaheed Bhagat Singh Road,
Mumbai-400001, Maharashtra, India. 

Email id:-
Mob:-  07620193207

Download links

2018 Summer data sheet (15 to 22 April 2018)

Report of Common Bird Monitoring Programme (2017-Three season count)