The simplest way of counting the number of birds entering into your BH is to have a mechanical tally counter. During your visit to your BH, late evening, just look at the entrance hole and count the birds entering your BH and click on the counter. If you install a CCTV, count those that you see entering the entrance hole and click. Once finished look at the total.
If you also want to count those that flies out, get one more. The right hand counter for those entering and the left hand counter for leaving.
Deduct the total and you might get the estimated count of how many birds are in your house for that day.
I have been thinking about getting this item and never make any attempt to buy them.
Recently one of my blog reader told me that he have a gift for me to try.
I met him and have a look at this simple counter.
Its product description:
This thumb operated, mechanical tally counter is easily held in your hand. It has a thumb ring and white digits on a black background. The counter goes from 0 to 9,999. The counter is readily reset to zero with a twist of the knob. You'll be impressed with its sturdy case. Be sure to never lose track again! The tally counter can be used for counting insects and animals and trees, taking surveys and warehouse inventories and for quality control purposes.
A very simple instrument that you can use in counting those birds entering your new BH or for nest counting or number of tweeters in any BH you visitied.
Cost per unit is RM 28. Freight RM 3
If you need one please email your request to harryswiftlet@yahoo.com
I will be happy to sent to U the unit once stock arrive.
