get the centroid of multiple grid centroids

[ElaineKuo]

Dear list,

I have multiple bird distribution maps in the form of ArcGIS shape files.
The distribution maps are composed of grid polygons. (1 grid= 100 km* 100km)

Now I want to obtain the centroids of each bird distribution maps.
In the first step, I use "Feature to point"  to retrieve centroid of each grid within the polygons.
Then, please kindly advise if any method is available to get the centroid of the grid centroid of each polygons.
Thank you in advance.

Elaine

[curtvprice]

I have multiple bird distribution maps in the form of ArcGIS shape files.
The distribution maps are composed of grid polygons. (1 grid= 100 km* 100km)

Now I want to obtain the centroids of each bird distribution maps.

You may want to try a dissolve operation first - use the option to merge separate polygons into multipart polygons. Each Multipart should generate only one aggregated centroid when you run Feature To Point.