Do you know your Bird Eggs? [QUIZ 2]
Looking at each egg will make you wonder what advantages or disadvantages it might have. Take for example cliff nesting birds who building their nest on large ledges. Maybe those eggs which are more pointed are less likely to roll off the ledge because they will instead roll in a tight arch?? Why are birds eggs colored differently?? Maybe from a predator’s vantage those green or blue eggs could look like a hole in the vegetation?? Those birds with white eggs might not need to be camouflage because both parents take turns incubating the eggs while protecting the white coloring from predators?? Maybe cavity nesting birds require that white coloring so that the parents don’t accidently break the egg while in the darkness of the cavity?? Are duck eggs oilier than normal eggs to help keep them more waterproof? So many questions that are being looked at by ornithologist today and their findings are helping us understand the unique features in the development of these eggs.
Checking out an Eastern Towhee Nest.
By posting these two birdQUIZs, I am hoping you will also look closer at each egg and try thinking why each egg looks the way that it does. This exercise will help you finding the proper owner of the broken or hatched egg shell that you find laying on the ground. Good Luck with the quiz!!
Each egg (above photos) comes from one of the six birds that are listed below. I strongly suggest using any reference bird egg or nest guide that is available to you. Answers to this quiz can be found on the bottom of the page. Part 1 of the quiz with 6 other birds were also done in yesterdays post. Remember . . . this isn’t an actual test it is just something to do for fun!
Tufted Titmouse usually have 5-6 eggs. Incubation is done by the female for 12-14 days. Nestlings fledge the nest after 15-18 days. They nest around deciduous or coniferous woodlands in a tree cavity or old woodpecker hole.
Eastern Screech Owl usually have 4-5 eggs. Incubation is done by female for 26 days. Nestlings fledge the nest after 30-32 days. They nest in a natural cavity or old woodpecker hole a variety of habitats including woodlots, forest, swamps, parks, orchards and suburban gardens.
Bald Eagle usually have 2 eggs. Incubation is done by both parents for 35-46 days. Nestlings fledge the nest after 10-11 weeks from hatching. The nest can be found near lakes, rivers and the coast in large conspicuous structure in a large tree.
Osprey usually have 3 eggs. Incubation is done by both parents for 32-33 days. Nestlings fledge the nest after 51-59 days from hatching. The nest can be found near water on lakes, rivers, estuaries and on the coast in a tree-top or rocky outcrop overlooking a stretch of water (around here they utilize telephone poles).
Ruby-throated Hummingbird usually have 2 eggs. Incubation is done by the female for 16 days. Nestlings fledge the nest after 19 days from hatching. The nest can be found on a tree or shrub over a wide variety of wooded habitats.
Turkey Vulture usually have 2 eggs. Incubation is done by both parents for 37-41 days. Nestlings fledge the nest after 11 weeks after hatching. The nest can be found in a variety of habitats but typically choose secluded and undisturbed sites. They are found on the ground in a cave, hollow log laying on the ground or in an unused building.
NOTE: The egg photos come from the Allegany State Park’s Red House Museum’s egg collection, which have the required educational permits for using these eggs for educational purposes. * It is illegal to possess bird eggs, bird nest, bird feather or any protected migratory dead bird without proper federal and state special purpose salvage permits.* The collection was donated to the park from a private collection that originated from a collector from the late 1890’s to early 1900’s. Each and every egg is very fragile, so consider the eggs age when comparing its coloring to the books photos. All reference material for this post comes from “A Guide to the Nest, Eggs, and Nestlings of North American Birds (second edition).” (1997) by Paul J. Baichich and Colin J.O. Harrison, Academic Press. and Ornithology (second edition) (1994) by Frank Gill.