KCBS_740 MARTINEZ (KCBS) — Big dogs are creating crowded conditions at Contra Costa County animal shelters, and shelter officials are hoping some animal lovers will take advantage of a special offer to adopt them.

The County Animal Services Department is obligated to take in all strays that come their way, according to shelter spokesperson David Burdo.

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“We’re just over 255, and that’s just between both shelters in Pinole, and Martinez,” Burdo said.

Burdo told KCBS that 70-percent or more of the animals in the shelter are considered big, weighing 25 pounds or more.

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The shelter is offering big dog adoptions for just $5 until May 7th.

“That’s a savings of anywhere between $100 to $170,” Burdo said.

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Despite the deal, there have been few takers.