Bird Feeder Data

By Julia Rea

This summer, my dad made a birdfeeder for my sister and I. Each

day, we watch birds eat from it. I’ve recorded data on which types of birds

came to it. Some of the birds that I list, have both male and female. That

means that the male and female are sexually dimorphic. Sexually

dimorphic is when the male and female have differences in how they look.

Others, are not sexually dimorphic. That means, that the male and female

look the exactly the same.

Woodpeckers

Hairy Woodpecker - Male and Female

Downy Woodpecker - Male and Female

Red–Bellied Woodpecker – Male and Female

Finches

American Goldfinch – Male and Female

Purple Finch – Male and Female

House Finch – Male and Female

Grosbeaks and Nuthatches

Rose – Breasted Grosbeak – Male and Female

Red-Breasted Nuthatch White-Breasted Nuthatch

Common Birds

Brown-headed Cowbird - Male and Female

American CrowCommon Grackle

Common Birds

Black-Capped Chickadee

House Sparrow – Male and Female

Dark-Eyed Junco – Male and Female

More Common Birds

Northern Cardinal – Male and Female Mourning Dove

Eastern KingbirdAmerican Robin – Male

and Female