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Casey Christie / The Californian

A farmworker drives a tractor along South Union Avenue across the street from this field of wild mustard blossoms Tuesday afternoon.

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Casey Christie / The Californian

This colorful butterfly found a temporary home on this wild mustard blossom off South Union Avenue Tuesday.

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Casey Christie / The Californian

This butterfly found a small patch of fiddleneck wildflowers within a larger field of wild mustard blossoms Tuesday.

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Casey Christie / The Californian

A school bus gets ready to drop students off after school as they pass a wild mustard field off South Union Avenue on Tuesday.

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Casey Christie / The Californian

A honey bee is busy pollinating in this field of wild mustard while a butterfly spreads its wings in the background.

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Casey Christie / The Californian

A butterfly lands on a fiddleneck wildflower inside a larger field of wild mustard photographed Tuesday off South Union Avenue.

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Casey Christie / The Californian

A wide angle zoom lens in motion during the normal exposure gives the zooming effect in this bright yellow field of wild mustard.

Spring has sprung, and that's evident in the fields around Bakersfield.

Californian photograher Casey Christie shares these images of wild mustard blossoms — and the creatues who landed on them — from a field off South Union Avenue.