[Vocabulary] coinciding with the arrival on their breeding grounds of Rufous Hummingbirds

[jaleel2007]

Please help:

"Coinciding with the arrival on their breeding grounds of Rufous Hummingbirds"

In

"This deciduous shrub grows abundantly on dry to somewhat moist sites in the mixed coniferous-deciduous forests of the Pacific Northwest U.S. Its pink to deep-red flowers appear early in the spring, coinciding with the arrival on their breeding grounds of Rufous Hummingbirds, which depend upon the plant’s nectar for their sustenance at this time."

Thank you in advance.

 

[emsr2d2]

Before we help, please edit your post so that all the sentences start with a capital letter and end with the appropriate punctuation mark.

 

[jaleel2007]

Before we help, please edit your post so that all the sentences start with a capital letter and end with the appropriate punctuation mark.

You are right.
My mistake, sorry

 

[emsr2d2]

Please help:

"Coinciding with the arrival on their breeding grounds of Rufous Hummingbirds"

In

"This deciduous shrub grows abundantly on dry to somewhat moist sites in the mixed coniferous-deciduous forests of the Pacific Northwest U.S. Its pink to deep-red flowers appear early in the spring, coinciding with the arrival on their breeding grounds of Rufous Hummingbirds, which depend upon the plant’s nectar for their sustenance at this time."

Thank you in advance.

Thanks for editing. The part with which you are having trouble means: The pink to deep-red flowers appear early in the spring, at the same time that the Rufous Hummingbirds arrive to breed at the same area. The hummingbirds need the nectar from that flower to give them energy during their breeding season - that is why the two coincide.