Evidence of nesting is easy to see. A bird carrying either vegetation or food means that they are building a nest or feeding young. And observing a recently hatched bird confirms that a nest was successful.
Migration takes many forms. Of course there are new arrivals that interest us, and of course there are transients that are passing through, but there are also late individuals that probably should have already migrated further north.
Abundant bright yellow birds means that it is the season for northbound migrating warblers. This is an exciting time to look for birds as we do not know what is around the next corner and their bright colors and loud singing makes their identification easier.
Morning bird song is at full tilt and many seasonal avian visitors continue to arrive. Annual standbys such as Towhees, Catbirds, and wrablers are being seen by Island birders.
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Some brightly colored birds (orioles, tanagers and grosbeaks) are now migrating north through Central America. And storms cross from the Pacific Ocean to the Gulf of Mexico before making their way northward to us.
The first singing American robins are eagerly anticipated every spring. Ten robins were loudly and continuously singing at my house on April 4, on a day where temperatures approached 70 degrees.