Zakat on Pigeons As a Source of Livelihood?

I am a man who has hundreds of pigeons, which I breed as a source of livelihood. Every new production, I sell off its squabs and spend on my family. By the end of the year, I do not find cash money. Only pigeons remain that fly here and there and gather in the tower at night. Now, I am confused about the proper way to pay the Zakat (obligatory charity) due on the pigeons?... (find your answer here)...

Understanding Zakat.

Allah, the Almighty, prescribed Zakat on all Muslims and made it one of the five pillars of Islam. He says, "and establish prayer and give Zakat" [Al-Quran, Surah Al-Baqarah, verse 110]. The Prophet also said, "Islam is based on (the following) five (pillars): to testify that there is no deity save Allah and Muhammad is His Messenger, offer the (compulsory congregational) prayers, pay Zakat (obligatory charity), perform Hajj (Pilgrimage to Mecca) and observe fast during the month of Ramadan."...

Payment of Zakat

The prompt payment of Zakat is compulsory when the means are available, and it is not permissible to postpone its payment except in cases of necessity e.g. if the money is in a country that is far away, or the person is serving a jail term etc. Evidence for the prompt payment of Zakat is in Quran (which mean): “…but pay the due thereof on the day of its harvest” (Al-An’am: 141), “…and give Zakat” (An-Nur: 56); (a Qur’anic order), as an order necessitates prompt compliance....

Zakat on Stocks

Stocks are part of a company's capital and the object of its profit or loss, according to the result of a company's operations. A stock-holder is considered a partner in the company, owning part of its assets, proportionate to the number of shares he owns in the total company's capital stock. He could sell his shares whenever he likes. When first issued, stocks have a nominal value determined on the first day of issue. It also has a market value which depends on supply and demand in the stock market in which stocks circulate and change hands.