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Yellow-bellied Sapsuckers |
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Hummingbird lovers feel the excitement as the migration season approaches. Flowers may still be weeks from blooming and there's no nectar in sight. How do the earliest hummingbirds get the energy they need? Some hummers get by with a little help from their friends! Early spring hummingbird arrivals feed on sweet tree sap oozing from rows of small holes drilled into trees by yellow-bellied sapsuckers. Some people think the northern limit of ruby-throats is determined by the range of sapsuckers. How are the breeding range patterns of these species similar? |
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| Ruby-throat Breeding Range (red) | Female | Yellow-bellied Sapsucker Breeding Range (red) |